Player zone add

[SteveMicroNova]

What does this change intend to accomplish?

Add the ability to change zones and groups from the player page using new button

Closes #1080 and #1076, potentially removes need for #1079 thanks to the relativistic volume bar always being there now.

Checklist

• Have you tested your changes and ensured they work?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• If applicable, have you updated the CHANGELOG?
• Does your submission pass linting & tests? You can test on localhost using ./scripts/test
• If this is a UI change, have you tested it across multiple browser platforms on both desktop and mobile?

Desktop:

• No Zones/Groups
• One Zone

Mobile:

• No Zones/Groups
• One Zone

[SteveMicroNova]

For clarification, the [ + ] button leads to this modal:

[klay2000]

This looks fine, I will approve it once the bug with relative volume changes is fixed.

[SteveMicroNova]

This looks fine, I will approve it once the bug with relative volume changes is fixed.

To translate for any readers, this is until #1062 is cleaned up and merged

[SteveMicroNova]

This looks fine, I will approve it once the bug with relative volume changes is fixed.

To translate for any readers, this is until #1062 is cleaned up and merged

This hurdle has been surpassed, rerequesting review on that basis @klay2000