mosaic #289629 user, portfolio, fold a frame [validation pending]

a button in header of each frame to toggle fold state ?

prioritynormal
typeenhancement
done in0.1.0
load0.300
load left0.000
closed by#d1ad54af02fc add a button to fold/unfold frame (closes #289629)
patchadd a button to fold/unfold frame (closes #289629) [applied]