* Fix ability to delete own comments in livestream
## Issue
5832: can't remove own comments in live stream mode (if you have multiple channels?)
Looks like it was just missing `commentIsMine` for the new component.
* Disable editing livestream comments
It doesn't do anything at the moment, anyways.
* Disable deleting hyperchats
The "total tipped" will get deducted when hyperchats are deleted, which doesn't make sense (doesn't reflect actual total that the creator received).
