Allowing users to block instances similar to blocking communities via tap and holding on any community name.

This would simplify and improve the user experience as it would allow users to block instances instead of requiring then to navigate to the filters settings to then manually type for the instance.

I’m assuming the implementation should be fairly easy and beneficial as:

1. The tap and hold menu is already implemented
2. The selected instance can be directly added to the blocklist reducing the need to search, thereby slightly improving performance. (I could be wrong about this point)