[Request] - Rename /remsafe to /removesafe

**Is your feature request related to a problem? Please describe.**
`/remsafe` use a different command syntax.

**Describe the solution you'd like**
For a more easy to learn commands structure, we need to use `add` and `remove` as standard prefixes for commands.

**Describe alternatives you've considered**
n/a

**Additional context**
n/a
