* build: reorganize activity-related files
* chore: add roles to instances of activity plan models
* chore: add avatar url to role object
* chore: in activity sessions, replace room creation state event with larger image
* started activity in chat creation
* starting vocab tile display
* refactor(vocab_analytics_list): made into little tiles that show the user chosen emoji
* chore: comment out unused file
* chore: remove unused variable
* chore: make eventID nullable for constructs so users can set emoji from vocab details popup
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Co-authored-by: ggurdin <ggurdin@gmail.com>
Co-authored-by: ggurdin <46800240+ggurdin@users.noreply.github.com>