🏹 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/hooks/Plugins/useMCPSelect.ts

@@ -81,13 +81,21 @@ export function useMCPSelect({ conversationId }: UseMCPSelectOptions) {
     [setEphemeralAgent],
   );
 
-  const [mcpValues, setMCPValues] = useLocalStorage<string[]>(
+  const [mcpValues, setMCPValuesRaw] = useLocalStorage<string[]>(
     `${LocalStorageKeys.LAST_MCP_}${key}`,
     mcpState,
     setSelectedValues,
     storageCondition,
   );
 
+  const setMCPValuesRawRef = useRef(setMCPValuesRaw);
+  setMCPValuesRawRef.current = setMCPValuesRaw;
+
+  // Create a stable memoized setter to avoid re-creating it on every render and causing an infinite render loop
+  const setMCPValues = useCallback((value: string[]) => {
+    setMCPValuesRawRef.current(value);
+  }, []);
+
   const [isPinned, setIsPinned] = useLocalStorage<boolean>(
     `${LocalStorageKeys.PIN_MCP_}${key}`,
     true,