Fix/moveToLobby: block receiving reactions in lobby

[mickelr]

COMPLETES #< INSERT LINK TO ISSUE >

https://jira-eng-gpk2.cisco.com/jira/browse/SPARK-535566

This pull request addresses

Still can receive reactions after moved into lobby

by making the following changes

Unsubcribe relay event when moved into lobby

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

< ENUMERATE TESTS PERFORMED, WHETHER MANUAL OR AUTOMATED >

I certified that

• [x] I have read and followed contributing guidelines

• [ ] 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

• [ ] I have updated the documentation accordingly

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Make sure to have followed the contributing guidelines before submitting.

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[mickelr]

After fix, the things will be:

• User comes into Lobby and waits
• User joins the meeting and the LLM gets connected
• User is moved into lobby by host and disconnected LLM
• User is moved back to meeting again by host and the LLM gets connected again

[mkesavan13]

After fix, the things will be:

• User comes into Lobby and waits
• User joins the meeting and the LLM gets connected
• User is moved into lobby by host and disconnected LLM
• User is moved back to meeting again by host and the LLM gets connected again

Makes sense. The updateLLMConnection method disconnects and reconnects the LLM every time it is called unless the meeting.isJoined is false. Is it the case here that once host moves the user back to lobby, their meeting.isJoined() returns false?

[mickelr]

After fix, the things will be:

• User comes into Lobby and waits
• User joins the meeting and the LLM gets connected
• User is moved into lobby by host and disconnected LLM
• User is moved back to meeting again by host and the LLM gets connected again

Makes sense. The updateLLMConnection method disconnects and reconnects the LLM every time it is called unless the meeting.isJoined is false. Is it the case here that once host moves the user back to lobby, their meeting.isJoined() returns false?

That's right. The state will be "IDLE" in lobby