fix(plugin-meetings): unpublish streams on moveTo

[mkesavan13]

COMPLETES SPARK-533903

This pull request addresses

Instant connected reported that, the moveTo API doesn't unpublish the localStreams. This is because the method closeRemoteStreams that was there before cleanupLocalStreams handled it appropriately and cleanupLocalStreams doesn't

by making the following changes

• Added the cleanup logic in moveTo method that closes the existing media connection, cleans up remote and local streams and also stops statsAnalyzer from sending any data
• Removed reconnect logic as that is not required anymore
• Instead we do addMedia with a forced retry to do turn discovery (isMoveToInProgress flag ensures of that in the establishMediaConnection method)

Change Type

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation update
• [ ] Tooling change
• [ ] Internal code refactor

The following scenarios where tested

• Join a Meeting with Audio and Video > Pair to a device > moveTo - This ensured the Video and Audio gets cut off
• Join a Meeting with Audio and Video > Share Screen > Pair to a device > moveTo - This ensured the screenshare is properly cut off on moveTo

I certified that

• [x] I have read and followed contributing guidelines

• [x] I discussed changes with code owners prior to submitting this pull request

• [x] I have not skipped any automated checks

• [x] All existing and new tests passed

• [x] I have updated the documentation accordingly

---

Make sure to have followed the contributing guidelines before submitting.

[marcin-bazyl]

The PR description says "COMPLETES AdHoc" - we're missing a jira link here

[mkesavan13]

The PR description says "COMPLETES AdHoc" - we're missing a jira link here

~We do not have a Jira for this. I took it as an Adhoc activity to fix this @marcin-bazyl~

Added the SPARK link