Rich Text Editor:Rich Text Editor Sizing

Build 8788 on users/aagash/mention-popup-in-editor
1200px
Reviewing disabled
Baseline History
Build 8788fa87e48
Current build. There are unaccepted changes, so build 7872 is still the baseline.
Build 73084ca3caa
Accepted by Vivin Krishna.
Build 71060b58903
Accepted by vikisekarNI.
Commenting is disabled because there's a newer build on this branch