Fix the reconnect button

After a membership manager error, clicking the 'reconnect' button did nothing. This is because we were forgetting to clear the external error state, causing it to transition directly back to the same error state.

src/room/GroupCallErrorBoundary.tsx

@@ -36,7 +36,9 @@ import { type WidgetHelpers } from "../widget.ts";
 
 export type CallErrorRecoveryAction = "reconnect"; // | "retry" ;
 
-export type RecoveryActionHandler = (action: CallErrorRecoveryAction) => void;
+export type RecoveryActionHandler = (
+  action: CallErrorRecoveryAction,
+) => Promise<void>;
 
 interface ErrorPageProps {
   error: ElementCallError;
@@ -71,7 +73,7 @@ const ErrorPage: FC<ErrorPageProps> = ({
   if (error instanceof ConnectionLostError) {
     actions.push({
       label: t("call_ended_view.reconnect_button"),
-      onClick: () => recoveryActionHandler("reconnect"),
+      onClick: () => void recoveryActionHandler("reconnect"),
     });
   }
 
@@ -131,9 +133,9 @@ export const GroupCallErrorBoundary = ({
           widget={widget ?? null}
           error={callError}
           resetError={resetError}
-          recoveryActionHandler={(action: CallErrorRecoveryAction) => {
+          recoveryActionHandler={async (action: CallErrorRecoveryAction) => {
+            await recoveryActionHandler(action);
             resetError();
-            recoveryActionHandler(action);
           }}
         />
       );