Issue 241 refactor stream state management in publisher

[jackshen]

241

https://miro.com/app/board/uXjVPtdai40=/?share_link_id=511443114954

[vincentsong]

@jackshen I found some bugs,

• [x] user cannot add second camera stream
• [ ] after start stream from publisher, wait for the viewer app to load the stream, then stop publisher, the video stream still show in viewer app
• [x] user added local file stream and publish it, but it is not shown up in viewer side
• [x] the viewer link is different every time when user clicked on invite viewer button

[vishalkharge]

@jackshen Issues reported by Vincent are present on this branch only and I am able to reproduce this.

[Publisher App] Invite viewers link is different every time when user clicked on invite viewer button On Preview Page: Copy the invite viewer link => https://.....&streamName=1675139436606 On Preview Page: Copy the invite viewer link => https://.....&streamName=1675139436606 Go Live On Stream Page: Copy the invite viewer link => https://.....&streamName=1675139454049 On Stream Page: Copy the invite viewer link => https://.....&streamName=1675139465050 On Stream Page: Copy the invite viewer link => https://.....&streamName=1675139470056 Stop Streaming On Preview Page: Copy the invite viewer link => https://.....&streamName=1675139475240 On Preview Page: Copy the invite viewer link => https://.....&streamName=1675139475240

[Viewer App] Shared Screen and Stream Local File is not shown on the viewer app

[vishalkharge]

@jackshen @vincentsong Following issue is observed on this PR branch:

Secondary camera, screen sharing and local file streaming is not shown on the viewer when added after streaming is started.