ADD more clearer on/off button state in yt Player controls

[allanlaal]

currently its very hard to get a clear understanding of what the state of the plugin is

since its a toggle button, perhaps we could use the same style as yt Player controls "Annotations on/off", where instead of the ● there would be the ytlc logo?

[kubuzetto]

Hi Allan, thank you very much for the feedback!

Unfortunately I was not able to do any development on the YTLC plugin for quite a while. I was planning to refactor the entire codebase, and started rewriting most of the logic before I switched jobs, then had to abandon the work done due to lack of time.

I still want to return to developing YTLC in the near future, but for the moment I cannot maintain it.

If you are willing to send a PR on these features, I'd gladly accept them.