🔍 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>

package-lock.json

@@ -64,7 +64,7 @@
         "@langchain/google-genai": "^0.2.13",
         "@langchain/google-vertexai": "^0.2.13",
         "@langchain/textsplitters": "^0.1.0",
-        "@librechat/agents": "^2.4.51",
+        "@librechat/agents": "^2.4.52",
         "@librechat/api": "*",
         "@librechat/data-schemas": "*",
         "@node-saml/passport-saml": "^5.0.0",
@@ -19343,9 +19343,9 @@
       }
     },
     "node_modules/@librechat/agents": {
-      "version": "2.4.51",
-      "resolved": "https://registry.npmjs.org/@librechat/agents/-/agents-2.4.51.tgz",
-      "integrity": "sha512-wmwas9/XvF+KSSez53iXx4f1yD4e2nDvqzv0kinGk9lbPIGIAOTCLKGOkS1lEHzSkKXUyGmYIzJFwaEqKm52fw==",
+      "version": "2.4.52",
+      "resolved": "https://registry.npmjs.org/@librechat/agents/-/agents-2.4.52.tgz",
+      "integrity": "sha512-E0CbuXZEIx3J3MjiZ7wDQuDIMaeGPMkSkcm2foOE2PmneAGiGpIjTgvxa9UjJUUWQku191fydZXr9dE826N1MA==",
       "license": "MIT",
       "dependencies": {
         "@langchain/anthropic": "^0.3.23",
@@ -46494,7 +46494,7 @@
         "typescript": "^5.0.4"
       },
       "peerDependencies": {
-        "@librechat/agents": "^2.4.51",
+        "@librechat/agents": "^2.4.52",
         "@librechat/data-schemas": "*",
         "@modelcontextprotocol/sdk": "^1.13.3",
         "axios": "^1.8.2",