Fix options loading and merging

src/index.ts

@@ -35,9 +35,7 @@
                 delete (rc.config as HtmlnanoOptionsConfigFile).preset;
             }
 
-            if (!options) {
-                restConfig = rc.config as Partial<HtmlnanoOptions>;
-            }
+            restConfig = { ...(rc.config as Partial<HtmlnanoOptions>), ...restConfig };
         }
     }
 
@@ -136,7 +134,7 @@
     removeUnusedCss: () => interop(import('./_modules/removeUnusedCss')),
     sortAttributes: () => interop(import('./_modules/sortAttributes')),
     sortAttributesWithLists: () => interop(import('./_modules/sortAttributesWithLists'))
 } satisfies Record<string, () => Promise<HtmlnanoModule<any>>>;
 
 const htmlnano = Object.assign(function htmlnano(optionsRun: HtmlnanoOptions = {}, presetRun?: HtmlnanoPreset) {
     // eslint-disable-next-line prefer-const -- re-assign options
@@ -187,16 +185,16 @@
                 : (await import(`./_modules/${moduleName}.mjs`)) as HtmlnanoModule;
 
             if (typeof mod.onAttrs === 'function') {
                 attrsHandlers.push(mod.onAttrs(options, moduleOptions as Partial<any>));
             }
             if (typeof mod.onContent === 'function') {
                 contentsHandlers.push(mod.onContent(options, moduleOptions as Partial<any>));
             }
             if (typeof mod.onNode === 'function') {
                 nodeHandlers.push(mod.onNode(options, moduleOptions as Partial<any>));
             }
             if (typeof mod.default === 'function') {
                 promise = promise.then(async tree => await mod.default!(tree, options, moduleOptions as Partial<any>));
             }
         }