Reverting model changes just to see how the upstream tests like it

Author: SteveMicroNova

amplipi/models.py

@@ -87,7 +87,7 @@ class fields(SimpleNamespace):
   VolumeMax = Field(ge=MIN_VOL_DB, le=MAX_VOL_DB, description='Max output volume in dB')
   GroupMute = Field(description='Set to true if output is all zones muted')
   GroupVolume = Field(ge=MIN_VOL_DB, le=MAX_VOL_DB, description='Average output volume')
-  GroupVolumeF = Field(ge=MIN_VOL_F - MIN_VOL_F, le=MAX_VOL_F + MAX_VOL_F, description='Average output volume as a floating-point number. Larger than zone vol_f due to also encompassing a zones vol_f_buffer.')
+  GroupVolumeF = Field(ge=MIN_VOL_F, le=MAX_VOL_F, description='Average output volume as a floating-point number. Larger than zone vol_f due to also encompassing a zones vol_f_buffer.')
   Disabled = Field(description='Set to true if not connected to a speaker')
   Zones = Field(description='Set of zone ids belonging to a group')
   Groups = Field(description='List of group ids')