feat: call notification popup (callbox)

[ShGKme]

☑️ Resolves

• Fix: Notifications: add popup window for a call notification with join/decline buttons #292

🖼️ Screenshots

Settings

Callbox

Animation

Position on the screen

• Top center, half height on top
• Doesn't grab focus when open
• Always on top, toolbar on Window, panel on macOS

Long name

Actions

• If not disabled by settings - shows a callbox instead of a native notification
• Decline or Quit X - closes the callbox
• Join call - opens a chat with media settings (direct-call)
  
• Auto close:
  • After 45 s
  • If a user has already joined the call (checked every 2 seconds)
  • Shows a notification, which opens a notification on click
    

Design 3:

Design 2

Design 1

Call notification popup is designed to have phone-call-like look.

Dark	Light	Draft

With animation

🚧 Tasks

• Add callbox window
• Open window on call notification
• Join call with direct call
• Add "Missed call" notification

[jancborchardt]

Very nice! Just some small feedback:

• Considering the vertical whitespace between caller and buttons it possibly looks better to just make the modal square (I do appreciate your use of the golden spiral though ;)
• In Nextcloud and also on other calling systems like on iOS, Discord, etc the "Join call" button is usually on the right while "Decline" is on the left

[ShGKme]

• In Nextcloud and also on other calling systems like on iOS, Discord, etc the "Join call" button is usually on the right while "Decline" is on the left

On all the systems or only on Apple?

[Antreesy]

might be cheaper to fetch a single conversation and check:

• .hasCall if call is ongoing
• .participantFlags if current user is connected to the call

But agree with doing it in a follow-up

[ShGKme]

@nickvergessen is it actually cheaper?

[nickvergessen]

Let use this here /call for now as it's what the clients also use. We could also do a specific cheapest endpoint in the future

[nickvergessen]

PS: releasing with CallGetParticipantsForCallResponse endpoint call is totally fine
we will have the first performance already available in the next release :)

[Antreesy]

Nothing blocking from me, tested in a group call

A new design is applied according to the discussion in chats

[ShGKme]

• Rebased onto main
• Squash fixups for fixes according to the review (approved by @Antreesy in DM)
• Applied changes from the recently merged zoom fix to the new window fix: zoom from config is not applied #893

[ShGKme]

The last one fix force pushed:

Zoom was applied twice:

• Once to get scaled size
• Then again to set it as the window size