Android Editor: Fix embed mode orientation handling

[syntaxerror247]

Follow up to #102492, this PR fixes the orientation handling for embedded mode.

Since the game can apply its own orientation, it causes layout issues when its in window mode and orientation is set to portrait. It break the editor layout.

To address this:

• Orientation changes are now disabled when embed mode is enabled and running in windowed mode (i.e., fullscreen is not active).
• If the game requests an orientation change in windowed mode, it will be cached.
• The cached orientation will be applied when switching to fullscreen.
• When switching back to windowed mode, the orientation will revert to landscape to maintain editor layout.

Before this PR

Screenrecorder-2025-02-13-14-30-38-112.mp4

After this PR

VID_20250213_144317.mp4

It also fixes an issue where tapping the cutout area would unintentionally minimize the game or switch it to Picture-in-Picture mode.

[m4gr3d]

The logic looks good!

One thing I'm curious about though is whether updating the aspect ratio of the window dimensions to match the requested orientation (in addition to caching the requested orientation) would provide the desired effect.

[syntaxerror247]

One thing I'm curious about though is whether updating the aspect ratio of the window dimensions to match the requested orientation (in addition to caching the requested orientation) would provide the desired effect.

Yes, I initially tried implementing it (i.e. reducing width to give the effect of portrait). However, I left it out of this PR because reducing the width would leave very little space for the game menu buttons, requiring the user to scroll for each item. To address this, we would need to replace the horizontal scroll layout with a dropdown in portrait mode.

I felt it made more sense to include these changes in a single PR that properly implements window resizing.

[akien-mga]

Thanks!