Watch page

Monitor page

Will these names be ok or do I need to change something?

I guess it's ok. I would have gone with a toggle for video and a toggle for analysis, but either way gets the job done.

I would have gone with a toggle for video and a toggle for analysis,

Yes, I wanted to do it that way.
But, for example, for the Monitor page we will have to add another field to the DB to disable ZMS JPEG, for example "ZMSEnabled".
I have some sketches. For example, it could look like this:

This is a multi select in which you can select the necessary players or disable them all.
The checkboxes will be in the "disabled" state, but the "tick" will be automatically checked or unchecked depending on whether the player is selected in the multi select or not.
If you agree, I will do this as a separate PR.

I would have gone with a toggle for video

I've done a lot already, but... I came to the conclusion that Player = None is wrong. To play only audio, we still need a player. It can be either go2rtc or rtsp2web.
We can't turn off the player completely, because in this case nothing will be played at all.
I'll have to stop at the option: #4393 (comment)
I can make a PR regarding this switch #4393 (comment)
But without the "None" option. Should I make a PR or leave everything as it is now?

Let's leave the player issues aside. I disagree with adding options to disable zms playback, as that is the fallback when all else fails. People get confused when there are too many options to configure.
I think for now this PR should simply add the Show audio visualisation feature. Leave the rest for another day.
I am targetting Christmas for release now, so we could get this in soon.

I disagree with adding options to disable zms playback,

I don't want to disable ZMS either.
I'm just busy with my main job right now and have put off working on this PR for a bit.
But I hope to finish this PR soon.