Make ChaosFlix resizable

[alexanderadam]

I'm using Samsung DeX, which gives a desktop like experience and makes use of Android windowing support.

Samsung has documentation on how to enable window resizing for Android applications:

<application
    android:resizeableActivity="true">
</application>

This documentation also has more tweaks and information on how to improve the desktop experience in case you're interested.
They also have an app testing guide (although some apps are fine with this guide but won't work on "real" DeX sometimes).

At the moment the resizing button is greyed out and the application is always nearly squarish:

PS: I know that it is possible to force all apps to be resizable via Samsung Labs > Force Resize but it would obviously better to make the application natively resizable to create less friction.
PPS: I'm not sure whether this is relevant but this is how GitNex fixed the issue and this is how NewPipe did it.