Update Active call indicators to reflect if it is a Voice or a Video Call (parity with web)

[BillCarsonFr]

When there is an ongoing call, there are several places in the UX where an active call indicator is shown.
It is currently using a camera icon, but since #5995 we have information of if the call is audio or video.
We have to update the indicator accordingly:

In the room list

In the timeline

Parity with web:

On web the status is live, and will switch to audio if no one is using video (based on the current intent in membership event? m.call.intent)

[BillCarsonFr]

Bloked because we are missing some rust-sdk and ruma support for that.
Looks like the m.call.intent in membership events used in js-sdk is not speced edit it is speced here https://github.com/matrix-org/matrix-spec-proposals/blob/hughns/matrixrtc-m-call/proposals/4196-matrixrtc-m-call.md

[BillCarsonFr]

depends on github.com/matrix-org/matrix-rust-sdk/pull/6274