fix(whiteboard): prevent annotation subscription from being recreated

[JoVictorNunes]

What does this PR do?

Prevents annotation subscription from being recreated.
Removes annotation data duplication.

Closes Issue(s)

Closes #19495

Motivation

Since the GraphQL data stream sends all data on first render and then sends only updates, we don't need to use a query to grab initial annotation data.

[sonarcloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

Automated tests Summary

✅ All the CI tests have passed!

[Wladimir-N]

Tell me, does this fix in 3.0 solve this problem? Only I have it on bbb 2.7.3

[ffdixon]

This fix is related to the work in 3.0 to move to GraphQL as the underlying communication between the BigBlueButton client/server.

Are you able to reproduce the issue on

https://demo.bigbluebutton.org/

which is running BigBlueButton 2.7.4?

[Wladimir-N]

This fix is related to the work in 3.0 to move to GraphQL as the underlying communication between the BigBlueButton client/server.

Are you able to reproduce the issue on

https://demo.bigbluebutton.org/

which is running BigBlueButton 2.7.4?

I can't even imagine how to reproduce this. This happens for one specific class, and not always. We tried to reproduce it on purpose, but it didn’t work. Or maybe one of the students found a bug and is sabotaging the lesson. Well, for obvious reasons, it doesn’t specifically reproduce this in test classes. The problem was on older versions and was reproduced more often. Now on 2.7.6 there are noticeably fewer complaints. However, if you stick to the version that one of the students reproduces this on purpose, then perhaps it’s not the version, but the fact that there was increased interest in this and he began to do it less often.