Attempt to fix crash by RYD showing dislike info while screen is being rotated

[the-blank-x]

What is it?

• [x] Bugfix (user facing)
• [ ] Feature (user facing)
• [ ] Codebase improvement (dev facing)
• [ ] Meta improvement to the project (dev facing)

Description of the changes in your PR

Adds null checks when attempting to run code on the UI thread and showing dislike information from Return Youtube Dislike

Before/After Screenshots/Screen Record

(In my experience, I can more consistently reproduce the bug by manually fullscreening the video right after it loads, hence me mashing on where the fullscreen button would be)

• Before:

https://user-images.githubusercontent.com/45762106/218317878-d83ee664-5dd7-43a1-8c29-7ed46aebf82b.mp4

• After:

https://user-images.githubusercontent.com/45762106/218317899-4ea44ea9-7426-4fd2-8afe-ab10c11903c9.mp4

Fixes the following issue(s)

• Fixes #297

APK testing

The APK can be found by going to the "Checks" tab below the title. On the left pane, click on "CI", scroll down to "artifacts" and click "app" to download the zip file which contains the debug APK of this PR.

Due diligence

• [x] I read the contribution guidelines.

[MDP43140]

This can be useful in case after watching landscape video and the next video was in potrait/shorts form (and vice versa) forcing screen rotation (especially in fullscreen mode).