fix: LoadProfileBottomSheet accessing disposed outerContext

[aryanA101a]

fixes #644

The following code is causing the issue:
It only pops UserBottomSheet, and leaves the LoadProfileBottomSheet to access the stale outerContext even after navigation is done.

case UserBottomSheetAction.message:
        //more code
        widget.outerContext.go('/rooms/${roomIdResult.result!}');
        Navigator.of(context, rootNavigator: false).pop();
        break;

[krille-chan]

Thank you very much <3

[krille-chan]

Formatting is broken. Please run dart format lib/ test/ and update the PR to fix it.