diff --git a/package-lock.json b/package-lock.json
index 528e048..cfd4da4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -150,6 +150,148 @@
         "url-parse": "~1.4.3"
       }
     },
+    "@jupyterlab/docmanager": {
+      "version": "1.2.11",
+      "resolved": "https://registry.npmjs.org/@jupyterlab/docmanager/-/docmanager-1.2.11.tgz",
+      "integrity": "sha512-6GD52S2VPfJP/v+moqyLvNx0fxKV4CLCI/jHTfKn8+xqQvNTdHg9oIhsMcwrbyhHmDro885m2xdyefN1uAU8Dg==",
+      "requires": {
+        "@jupyterlab/apputils": "^1.2.11",
+        "@jupyterlab/coreutils": "^3.2.0",
+        "@jupyterlab/docregistry": "^1.2.11",
+        "@jupyterlab/services": "^4.2.3",
+        "@jupyterlab/statusbar": "^1.2.11",
+        "@phosphor/algorithm": "^1.2.0",
+        "@phosphor/coreutils": "^1.3.1",
+        "@phosphor/disposable": "^1.3.0",
+        "@phosphor/messaging": "^1.3.0",
+        "@phosphor/properties": "^1.1.3",
+        "@phosphor/signaling": "^1.3.0",
+        "@phosphor/widgets": "^1.9.0",
+        "react": "~16.8.4"
+      },
+      "dependencies": {
+        "@jupyterlab/apputils": {
+          "version": "1.2.11",
+          "resolved": "https://registry.npmjs.org/@jupyterlab/apputils/-/apputils-1.2.11.tgz",
+          "integrity": "sha512-n9AHs5+mqgB6BKATcP2azUQWcIIuA1x1rhm8jz5OdkPFrgXJ274ArWD9pAmQj7eM+kov2MzKdUmxDmRgSHYY7w==",
+          "requires": {
+            "@jupyterlab/coreutils": "^3.2.0",
+            "@jupyterlab/services": "^4.2.3",
+            "@jupyterlab/ui-components": "^1.2.1",
+            "@phosphor/algorithm": "^1.2.0",
+            "@phosphor/commands": "^1.7.0",
+            "@phosphor/coreutils": "^1.3.1",
+            "@phosphor/disposable": "^1.3.0",
+            "@phosphor/domutils": "^1.1.3",
+            "@phosphor/messaging": "^1.3.0",
+            "@phosphor/properties": "^1.1.3",
+            "@phosphor/signaling": "^1.3.0",
+            "@phosphor/virtualdom": "^1.2.0",
+            "@phosphor/widgets": "^1.9.0",
+            "@types/react": "~16.8.18",
+            "react": "~16.8.4",
+            "react-dom": "~16.8.4",
+            "sanitize-html": "~1.20.1"
+          }
+        },
+        "@jupyterlab/codemirror": {
+          "version": "1.2.11",
+          "resolved": "https://registry.npmjs.org/@jupyterlab/codemirror/-/codemirror-1.2.11.tgz",
+          "integrity": "sha512-sUTY4qp0iBrmukyZUtV16yFV2+wRUEPEDYz142J9w/YyqBvnVUPZrK60upT2YC5e009GugSK3hjiNyXClaGHoA==",
+          "requires": {
+            "@jupyterlab/apputils": "^1.2.11",
+            "@jupyterlab/codeeditor": "^1.2.0",
+            "@jupyterlab/coreutils": "^3.2.0",
+            "@jupyterlab/observables": "^2.4.0",
+            "@jupyterlab/statusbar": "^1.2.11",
+            "@phosphor/algorithm": "^1.2.0",
+            "@phosphor/commands": "^1.7.0",
+            "@phosphor/coreutils": "^1.3.1",
+            "@phosphor/disposable": "^1.3.0",
+            "@phosphor/signaling": "^1.3.0",
+            "@phosphor/widgets": "^1.9.0",
+            "codemirror": "~5.47.0",
+            "react": "~16.8.4"
+          }
+        },
+        "@jupyterlab/docregistry": {
+          "version": "1.2.11",
+          "resolved": "https://registry.npmjs.org/@jupyterlab/docregistry/-/docregistry-1.2.11.tgz",
+          "integrity": "sha512-DSLAOBp8grVEWF81z8vDa5mxVd97r7oWmtChb0DpvVOmgQM5AIUL7QQEP3bcSFlMfH8awRZpUk/gicv8kfo2IQ==",
+          "requires": {
+            "@jupyterlab/apputils": "^1.2.11",
+            "@jupyterlab/codeeditor": "^1.2.0",
+            "@jupyterlab/codemirror": "^1.2.11",
+            "@jupyterlab/coreutils": "^3.2.0",
+            "@jupyterlab/observables": "^2.4.0",
+            "@jupyterlab/rendermime": "^1.2.11",
+            "@jupyterlab/rendermime-interfaces": "^1.5.0",
+            "@jupyterlab/services": "^4.2.3",
+            "@phosphor/algorithm": "^1.2.0",
+            "@phosphor/coreutils": "^1.3.1",
+            "@phosphor/disposable": "^1.3.0",
+            "@phosphor/messaging": "^1.3.0",
+            "@phosphor/signaling": "^1.3.0",
+            "@phosphor/widgets": "^1.9.0"
+          }
+        },
+        "@jupyterlab/rendermime": {
+          "version": "1.2.11",
+          "resolved": "https://registry.npmjs.org/@jupyterlab/rendermime/-/rendermime-1.2.11.tgz",
+          "integrity": "sha512-bLqPROCFe4jafPVlbV0ENkUMl3lH93DwQZgQQ48R7O2iQaeNOHx1zncwcoOEVo8Mz3HsquoNQRagO1d+9n8L/A==",
+          "requires": {
+            "@jupyterlab/apputils": "^1.2.11",
+            "@jupyterlab/codemirror": "^1.2.11",
+            "@jupyterlab/coreutils": "^3.2.0",
+            "@jupyterlab/observables": "^2.4.0",
+            "@jupyterlab/rendermime-interfaces": "^1.5.0",
+            "@jupyterlab/services": "^4.2.3",
+            "@phosphor/algorithm": "^1.2.0",
+            "@phosphor/coreutils": "^1.3.1",
+            "@phosphor/messaging": "^1.3.0",
+            "@phosphor/signaling": "^1.3.0",
+            "@phosphor/widgets": "^1.9.0",
+            "lodash.escape": "^4.0.1",
+            "marked": "^0.7.0"
+          }
+        },
+        "@jupyterlab/services": {
+          "version": "4.2.3",
+          "resolved": "https://registry.npmjs.org/@jupyterlab/services/-/services-4.2.3.tgz",
+          "integrity": "sha512-bCPq1j8+qU5pCzsaKvT39e8Aj4snFCchSAoVr12wAOlp0gQZYpUZAgaFhnYtawGo44aBfEYWhQuW5UPol/XUag==",
+          "requires": {
+            "@jupyterlab/coreutils": "^3.2.0",
+            "@jupyterlab/observables": "^2.4.0",
+            "@phosphor/algorithm": "^1.2.0",
+            "@phosphor/coreutils": "^1.3.1",
+            "@phosphor/disposable": "^1.3.0",
+            "@phosphor/signaling": "^1.3.0",
+            "node-fetch": "^2.6.0",
+            "ws": "^7.0.0"
+          }
+        },
+        "@jupyterlab/statusbar": {
+          "version": "1.2.11",
+          "resolved": "https://registry.npmjs.org/@jupyterlab/statusbar/-/statusbar-1.2.11.tgz",
+          "integrity": "sha512-eyNKL3jEXZ2mvr2LhiiKa685Xfr6nhuxISwFWJjNhx6ObIc/2ku4KTQaK42uxkEseHKCXZTiLuLcCaQ6rdcLfg==",
+          "requires": {
+            "@jupyterlab/apputils": "^1.2.11",
+            "@jupyterlab/codeeditor": "^1.2.0",
+            "@jupyterlab/coreutils": "^3.2.0",
+            "@jupyterlab/services": "^4.2.3",
+            "@jupyterlab/ui-components": "^1.2.1",
+            "@phosphor/algorithm": "^1.2.0",
+            "@phosphor/coreutils": "^1.3.1",
+            "@phosphor/disposable": "^1.3.0",
+            "@phosphor/messaging": "^1.3.0",
+            "@phosphor/signaling": "^1.3.0",
+            "@phosphor/widgets": "^1.9.0",
+            "react": "~16.8.4",
+            "typestyle": "^2.0.1"
+          }
+        }
+      }
+    },
     "@jupyterlab/docregistry": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/@jupyterlab/docregistry/-/docregistry-1.2.1.tgz",
@@ -978,9 +1120,9 @@
       "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
     },
     "moment": {
-      "version": "2.24.0",
-      "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
-      "integrity": "sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg=="
+      "version": "2.29.2",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.29.2.tgz",
+      "integrity": "sha512-UgzG4rvxYpN15jgCmVJwac49h9ly9NurikMWGPdVxm8GZD6XjkKPxDTjQQ43gtGgnV3X0cAyWDdP2Wexoquifg=="
     },
     "neo-async": {
       "version": "2.6.1",
diff --git a/yarn.lock b/yarn.lock
index fe677a9..70e5be0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -920,9 +920,9 @@ minimist@~0.0.1:
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
 moment@^2.24.0:
-  version "2.24.0"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
-  integrity sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==
+  version "2.29.2"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.2.tgz#00910c60b20843bcba52d37d58c628b47b1f20e4"
+  integrity sha512-UgzG4rvxYpN15jgCmVJwac49h9ly9NurikMWGPdVxm8GZD6XjkKPxDTjQQ43gtGgnV3X0cAyWDdP2Wexoquifg==
 
 neo-async@^2.6.0:
   version "2.6.1"