refactor: update ESLint configuration and remove unused dependencies

- Replaced Nuxt ESLint configuration with Antfu's ESLint config.
- Removed 'nuxt-visitors' module from Nuxt configuration.
- Added linting scripts to package.json for easier code quality checks.
- Introduced a new API endpoint for fetching weather data from OpenWeather.
- Enhanced chat types with new enums and properties for better state management.
- Added OpenWeather response types for improved type safety.
- Updated social links in types/index.ts to include an email contact.

app/app.vue

@@ -8,7 +8,6 @@ useHead({
   <UApp>
     <NuxtLoadingIndicator color="#808080" />
     <AppBackground />
-    <AppVisitors />
     <UContainer class="z-50 relative">
       <NuxtPage class="mt-12" />
     </UContainer>