Keyboard Shortcuts for the functions Mute and Block a user.

### Problem I have

I've been using Mastodon for 8 years, and I've always dreamed of having a keyboard shortcut to mute and another to block users. I enjoy browsing the global timeline, but every day I need to mute dozens of users, and having a shortcut would be absolutely wonderful. I also want to thank you for your work on this amazing site, phanpy.

### Solution I'd like

One keyboard shortcut for mute a user
One keyboard shortcut for block a user

Thanks.

### Alternatives considered

_No response_

### Other

_No response_