* Add `Copy` action for text events
* Remove 'Copy' action from the list for non-text events
* Use `@ContributesBinding` to inject `AndroidClipboardHelper`.
- Add the edit action in the room details
- Add "Add topic" button in room details
- Add the screen behind that action to edit some room properties: avatar, name, topic
- Handle the save button action
- enable the button only if changes are detected
- display a loader "updating room"
- display an error dialog if any request has failed
- Check user has the right power level to change various attributes
- "Add topic" is only shown if there's no topic and they are able to set on
- Edit menu is only shown if they can change topic, name or avatar
- On the edit page, any fields they can't change are uneditable
Co-authored-by: Chris Smith <csmith@lunarian.uk>
