Align items filtering experience

We have plenty of places where user can filter list of rooms/users and they look different. We could benefit from aligning them

| Screenshot | Screen description |
| ------------- | ------------- |
|| home -> filtering rooms at toolbar |
|| room -> search (only unencrypted rooms) |
|| incoming share (share anything to element using system menu) |
|| adding rooms to space or managing space's rooms|
|| room join rules (room -> settings -> room access -> "tap to edit spaces" |
|| public rooms (home with no space selected -> rooms tab -> explore fab) |
|| room members list and room's banned users list |
|| space start dm |