trigger SponsorBlock feature when playing in background

[Robinnaiitor]

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

• trigger SponsorBlock segment blocking logic

Fixes the following issue(s)

• Fixes Sponsorblock does not work in background play #257

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. You can find more info and a video demonstration on this wiki page.

Due diligence

• I read the contribution guidelines.

[Robinnaiitor]

FYI:
I'm totally not familiar with Java/Kotlin, after messing around a bit I found adding the following line of code will actually trigger SponsorBlocking while playing in the background.