Update various configuration files, components, and assets; enhance notification system and API endpoints; improve documentation and styles across the application.

app.config.js

@@ -0,0 +1,9 @@
+// app.config.ts
+export default defineAppConfig({
+  nuxtIcon: {
+    size: "24px", // default <Icon> size applied
+    aliases: {
+      nuxt: "logos:nuxt-icon",
+    },
+  },
+});