Mobile usability issues

[szuperaz]

Theming-v2 doesn't fix all mobile usability issues from theme-v1
Based on: https://www.notion.so/stream-wiki/23-06-2022-review-c252c50b317a4d94bc97826ad68804cf#71858b8d52ad4cbf967dc1fdcff138ee - but might be some others

Current figma: https://www.figma.com/file/oeHiSMDoutuVbJ9WiVyhcG/Chat-UI-Kit-1.5-Android-%26-Web?type=design&node-id=20917-287057&mode=design&t=6xStZIB0LPsuods8-0

[szuperaz]

Fixed for Angular in version 5 (currently in beta) https://getstream.io/chat/docs/sdk/angular/5/basics/upgrade-v4/