AngularUI: Improve chat module & provide items for mobile toolbar #14889
Description
Related Mobile toolbar feature
TODO: Provide toolbar items for mobile toolbar view (For now only for chat & delegation system)
Checklist
- I fully tested it as developer / designer and created unit / integration tests
- I worked with the design team to get their idea for UI/UX design (or no need to design for this PR)
- I've assigned reviewer, related labels and set a milestone for this PR
How to test it?
- Change to #1568 branch on lepton
- Run commercial demo