Theme and display mic icon only if suggestion is available (S)
Description
Reduce mic icon size and apply theme
Screenshots
Technical details
Tests
Issues
https://gitlab.e.foundation/e/os/backlog/-/issues/3312#note_678851 https://gitlab.e.foundation/e/os/backlog/-/issues/3066 https://gitlab.e.foundation/e/os/backlog/-/issues/3323