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/pages/demos/counter-demo.page.vue

@@ -128,7 +128,7 @@ const resetCount = () => {
             </button>
 
             <!-- Naive UI 按钮 -->
-            <n-button
+            <NButton
               type="warning"
               size="large"
               block
@@ -148,7 +148,7 @@ const resetCount = () => {
                 </svg>
               </template>
               点击 +1 (Naive UI)
-            </n-button>
+            </NButton>
 
             <!-- 重置按钮 -->
             <button