Fix lockscreen appearance

[silvanfischer]

The keyguard should not be dismissed on these screen as it could cause the opposite and add the keyguard again to these screens. showOnLockScreen is actually enough to make it appear.

[saghul]

Thanks for the patch! Can you please go a bit into the details on what you are fixing and how?

[Holofox]

@saghul, i think the fix is to be able to show [WrapperJitsiMeetActivity] on locked screen. Now if you try to open [WrapperJitsiMeetActivity] when the screen is locked, the user will not see it. This is necessary when we want to show a full-screen notification and connect the user to a call. Now we get the opposite effect, when we try to open [WrapperJitsiMeetActivity], the screen will lock.

@silvanfischer, i see code formatting in some places, I think we need to remove unnecessary changes and focus on the problem.

[saghul]

Got it.

Indeed please skip the unnecessary formatting changes and we can merge this.