Add play queue to menu

[HybridAU]

What is it?

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

Description of the changes in your PR

There is a feature (bug?) in Android 11 and up where media controls can be completely dismissed. The problem is the only way to get the the play queue is clicking on the media controls notification.

• Adds "Play Queue" button to the main menu
• Play Queue activity does not finish when the queue is empty. (So if you click on the Play Queue menu item while it's empty it doesn't flash open for a second and then immediately kick you back out)

Before/After Screenshots/Screen Record

• Before:
  

• After:
  

• Empty play queue screen:
  

Fixes the following issue(s)

EDITED: See comments below.

This PR might help address #2477, #5235 and #7208 although not exactly what they are looking for.

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

• I read the contribution guidelines.

[triallax]

@HybridAU this is not what #2477 asks for; the issue asks for the option to add a play queue tab at the top of the main page.

[HybridAU]

Hey @mhmdanas that's a good point, I did think about it, and I should have addressed it in my original comment on this PR.

When I was reading through #2477 there were several tickets that were closed as duplicates such as #1409, and several comment such as "that the queue that is accessed from the pull down menu is already a perfect layout" and even @SameenAhnaf has just commented saying they would prefer an icon for play queue on the top right corner.

So my interpretation was a more generally "users want a way to access the background player from with the app". The reason I went with a menu button was that it is a minimal change that allows reuse of the existing functionality and does not add a significant maintenance burden.

However that said I'm happy to change my PR description, to be clear that this dose not exactly do what #2477 is asking for.

[MD77MD]

the problem with implementing it this way it would be easily blocked... because the side menu is blocked the moment you interact with NewPipe and not on the main page

so you will have to go back to the main page to open queue which not right... queue should be easliy accessed regardless to whats opened in NewPipe

[MD77MD]

my idea is to have a button in the small play bar
like below which can be accessed from any where and as a bonuse no empty queue problem 😉

or

[SameenAhnaf]

The best alternative would have been #7973. But coding is the only reason I am afraid.

[HybridAU]

@MD77MD I like the idea of adding it in the small player bar. I'll close this PR and open a new one that does that.