Enhance token refresh logic and improve MITM server handling

- Introduced a caching mechanism for in-flight token refresh requests to prevent race conditions and reduce unnecessary API calls.
- Added error handling for unrecoverable refresh errors, ensuring that the application can gracefully handle token reuse and invalidation scenarios.
- Updated the MITM server management to handle port 443 conflicts, allowing users to kill processes occupying the port before starting the server.
- Improved user feedback in the MitmServerCard component regarding port conflicts and admin privileges.
- Refactored the ComboList component to streamline the display of media provider combos.

This update aims to enhance the reliability and user experience of the token management and MITM functionalities.

src/lib/tunnel/tunnelManager.js

@@ -124,6 +124,7 @@ export async function getTunnelStatus() {
 
   return {
     enabled: settings.tunnelEnabled === true && running,
+    settingsEnabled: settings.tunnelEnabled === true,
     tunnelUrl: state?.tunnelUrl || "",
     shortId,
     publicUrl,
@@ -190,6 +191,7 @@ export async function getTailscaleStatus() {
   const running = isTailscaleRunning();
   return {
     enabled: settings.tailscaleEnabled === true && running,
+    settingsEnabled: settings.tailscaleEnabled === true,
     tunnelUrl: settings.tailscaleUrl || "",
     running
   };