WIP: alternative user status design

[ShGKme]

☑️ Resolves

• The problem: too many clicks to just go to DnD, for example, to disable notifications. Opening a menu, opening a dialog box, working in it
• The proposal: separate online status and the custom status
• This is also a common practice for other messengers

🖼️ Screenshots

Option 1: sub menu

https://github.com/nextcloud/talk-desktop/assets/25978914/d6e16dd0-4a04-4862-8123-32adbace276e

https://github.com/nextcloud/talk-desktop/assets/25978914/6e2d60f0-d667-4d64-8f3a-619c1b9e2da1

Option 2: collapsible menu

https://github.com/nextcloud/talk-desktop/assets/25978914/ba7fccb9-b8d6-4763-9518-bf6d9fbabc21

Option 3: collapsible "select" menu

https://github.com/nextcloud/talk-desktop/assets/25978914/1692b126-49b3-4226-a4c3-e644c48bf150

Option 4: Nextcloud-sub-menu

https://github.com/nextcloud/talk-desktop/assets/25978914/a8400ba2-e67f-4d9a-82a8-96cbd0c98a17

[nickvergessen]

I prefer the look of the collapsable, but would think it could be handy to still have the status in the modal, especially together with the revert option of previous status.

[ShGKme]

Closing in flavor of https://github.com/nextcloud/talk-desktop/pull/683