refactor: update component names to PascalCase and improve structure

- Changed component names from kebab-case to PascalCase in various files for consistency.
- Updated `<router-view>` and `<transition>` to `<RouterView>` and `<Transition>` respectively in App.vue and base-layout.vue.
- Refactored AppNaiveUIProvider.vue to use PascalCase for Naive UI providers.
- Adjusted language and theme switch buttons to use PascalCase for icon components.
- Updated button components in demo pages to use PascalCase for Naive UI buttons.
- Modified ESLint rules in route message files to use perfectionist/sort-objects for better key sorting.
- Enhanced Vite plugin files to export loadPlugin functions for better plugin management.
- Improved plugin loading logic to handle errors and warnings more effectively.

src/layouts/base-layout/base-layout-header/components/UserDropdown.vue

@@ -39,7 +39,7 @@ function handleSelect(key: string) {
 <template>
   <NDropdown :options="options" placement="bottom-end" @select="handleSelect">
     <NButton quaternary circle>
-      <icon-material-symbols-account-circle w-5 h-5 />
+      <IconMaterialSymbolsAccountCircle w-5 h-5 />
     </NButton>
   </NDropdown>
 </template>