[New-Editor] When in prefab mode CTRL + S does not save the prefab (this is really annoying)

**Is your feature request related to a problem? Please describe.**
When in prefab mode CTRL + S does not save the prefab (this is really annoying)

**Describe the solution you'd like**
Save the prefab when clicking the shortcut

**Describe alternatives you've considered**
Manual annoying workflow

**Additional context**
nuh
