🔍 feat: Add SearXNG for Web Search and Enhance ApiKeyDialog (#8242)

* 🔍 feat: Add SearXNG Web Search support and enhance ApiKeyDialog

- Updated WebSearch component to include authentication data for web search functionality so it won't show badge after being revoked
- Refactored ApiKeyDialog to streamline provider, scraper, and reranker selection with new InputSection component
- Added support for SearXNG as a search provider and updated translation files accordingly
- Improved form handling in useAuthSearchTool to accommodate new API keys and URLs

* 📜 chore: remove unused i18next key

* 📦 chore: address comments (swap API key and URL fields in SearXNG config, change input fields to 'text' from 'password'

* 📦 chore: make URL fields go first in ApiKeyDialog

* chore: bump @librechat/agents to v2.4.52

* ci: update webSearch configuration to include searxng fields in AppService.spec.js

---------

Co-authored-by: Danny Avila <danny@librechat.ai>

client/src/components/Chat/Input/WebSearch.tsx

@@ -8,7 +8,7 @@ import { useBadgeRowContext } from '~/Providers';
 function WebSearch() {
   const localize = useLocalize();
   const { webSearch: webSearchData, searchApiKeyForm } = useBadgeRowContext();
-  const { toggleState: webSearch, debouncedChange, isPinned } = webSearchData;
+  const { toggleState: webSearch, debouncedChange, isPinned, authData } = webSearchData;
   const { badgeTriggerRef } = searchApiKeyForm;
 
   const canUseWebSearch = useHasAccess({
@@ -21,7 +21,7 @@ function WebSearch() {
   }
 
   return (
-    (webSearch || isPinned) && (
+    (isPinned || (webSearch && authData?.authenticated)) && (
       <CheckboxButton
         ref={badgeTriggerRef}
         className="max-w-fit"