Comment indicator bug fix

[oltionchampari]

Closes https://github.com/datavisyn/reprovisyn/issues/460 Requires https://github.com/datavisyn/reprovisyn/pull/482

Developer Checklist (Definition of Done)

• [x] Descriptive title for this pull request provided (will be used for release notes later)
• [ ] All acceptance criteria from the issue are met
• [x] Branch is up-to-date with the branch to be merged with, i.e., develop
• [x] Code is cleaned up and formatted
• [ ] Code documentation written
• [ ] Unit tests written
• [x] Tested in Chrome
• [ ] Tested in Firefox
• [x] Build is successful
• [x] Summary of changes written
• [ ] Wiki documentation written
• [x] Assign at least one reviewer
• [x] Assign at least one assignee
• [x] Add type label (e.g., bug, enhancement) to this pull request
• [x] Add next version label (e.g., next-version: minor) to this PR following semver

Summary of changes

• Fixed the logic of the comment button to not require for the panel to be open
• Moved the tracking of the comment panel visibility changes to the useCommentPanel hook since the boot should not track that but the comment panel hook.
• Added a loading spinner while the comment count is loading

Screenshots

[thinkh]

@dvzacharycutler could you test and review this PR please?