feat: implement dark mode support, update writing route logic, and add content entry placeholder

nuxt.config.ts

@@ -45,5 +45,14 @@ export default defineNuxtConfig({
         },
     },
 
-    modules: ['@nuxt/content'],
+    modules: ['@nuxt/content', '@nuxtjs/color-mode'],
+    colorMode: {
+        preference: 'system', // default value of $colorMode.preference
+        fallback: 'light', // fallback value if not system preference found
+        globalName: '__NUXT_COLOR_MODE__',
+        componentName: 'ColorScheme',
+        classPrefix: '',
+        classSuffix: '-mode', // Results in .dark-mode or .light-mode
+        storageKey: 'color-mode',
+    },
 });