v3.4.9
Add frontend visualizations for answer summary views. Clean up some unneeded backend code and resolve some review comments.
Black formatter staging (#23456)
Upgrade libraries (#14430)
Fix part of #9749: Migration of improvements-tab, statistics-tab, feedback-tab in Angular (#16060)
Reduce the number of files being excluded in the TS checks (#23908)
Standardize structure of visualization directives (#9605)
Highlight sentence during voiceover playback (#22689)
Fix #7092: Remove downgradeComponent (#21903)
Apply prettier 2 (#19862)