[Feature Request] Option to disable Rest Icon when max level

[Tabidou]

Is your feature request related to a problem? Please describe.
Resting is only relevant during leveling. Once reached max level, it becomes just a useless indicator.

Describe the solution you'd like
Unit Frames > Individual Units > Player > Rest Icon: Add an option "Always hide on max level"

Describe alternatives you've considered
I could just disable the icon once reaching max level, but then would need to put it back on new expansion.
It also means managing a setting per character.

Additional context
N/A