Fix bottom player button size on 9:16 screens

[PopCat19]

Checklist

• I am able to reproduce the bug with the latest debug version (Android, Linux, Windows)
• I've checked that there is no open or closed issue about this bug.
• This issue contains only one bug.
• The title of this issue accurately describes the bug.

Steps to reproduce

1. Install spmp on Samsung Galaxy S7 Edge
2. Select a song to summon player
3. Look at the bottom of the plater for tiny buttons.

Expected behavior

The buttons should be shown properly without needing to swipe up to view them.

Actual behavior

The buttons are small, though still tappable. They scale to expected size when swiping slightly up.

Screenshots / recordings

Logs

No crash.

SpMp version

0.4.2

SpMp platform

Android

OS version

Android 8.0

Additional information

Image description:

1. Tiny buttons
2. Swiping scales buttons
3. Display resolution