Disable call button while the call is connecting. (#3531)

* Disable call button while the call is connecting.

* cleanup

* fix

* Update src/room/LobbyView.tsx

Co-authored-by: Robin <robin@robin.town>

* fixup

* appease linter

---------

Co-authored-by: Robin <robin@robin.town>

src/room/RoomPage.tsx

@@ -151,7 +151,10 @@ export const RoomPage: FC = () => {
                   : E2eeType.NONE,
               },
             }}
-            onEnter={(): void => knock?.()}
+            onEnter={async (): Promise<void> => {
+              knock?.();
+              return Promise.resolve();
+            }}
             enterLabel={label}
             waitingForInvite={groupCallState.kind === "waitForInvite"}
             confineToRoom={confineToRoom}