🏹 feat: Concurrent MCP Initialization Support (#8677)

* ✨ feat: Enhance MCP Connection Status Management

- Introduced new functions to retrieve and manage connection status for multiple MCP servers, including OAuth flow checks and server-specific status retrieval.
- Refactored the MCP connection status endpoints to support both all servers and individual server queries.
- Replaced the old server initialization hook with a new `useMCPServerManager` hook for improved state management and handling of multiple OAuth flows.
- Updated the MCPPanel component to utilize the new context provider for better state handling and UI updates.
- Fixed a number of UI bugs when initializing servers

* 🗣️ i18n: Remove unused strings from translation.json

* refactor: move helper functions out of the route module into mcp service file

* ci: add tests for newly added functions in mcp service file

* fix: memoize setMCPValues to avoid render loop

client/src/components/SidePanel/MCP/MCPPanel.tsx

@@ -8,11 +8,12 @@ import type { TUpdateUserPlugins } from 'librechat-data-provider';
 import ServerInitializationSection from '~/components/MCP/ServerInitializationSection';
 import CustomUserVarsSection from '~/components/MCP/CustomUserVarsSection';
 import { useMCPConnectionStatusQuery } from '~/data-provider/Tools/queries';
+import BadgeRowProvider from '~/Providers/BadgeRowContext';
 import { useGetStartupConfig } from '~/data-provider';
 import MCPPanelSkeleton from './MCPPanelSkeleton';
 import { useLocalize } from '~/hooks';
 
-export default function MCPPanel() {
+function MCPPanelContent() {
   const localize = useLocalize();
   const { showToast } = useToastContext();
   const queryClient = useQueryClient();
@@ -205,3 +206,11 @@ export default function MCPPanel() {
     );
   }
 }
+
+export default function MCPPanel() {
+  return (
+    <BadgeRowProvider>
+      <MCPPanelContent />
+    </BadgeRowProvider>
+  );
+}