[fix] Next/Previous frame was jumping some frame

When the user try to move frame by frame, some frames were skipped. This was due to the wrong play mode been set before calling GoToPrevious or GoToNext. There was an additional issue when the user selected 'ALL Frame' in the PlayerControlerToolbar.

The wrong enum has been use all over this file.

requested review from @gatien.ferret

assigned to @nick.laurenson

approved this merge request

Checked locally, works as expected

enabled an automatic merge when the pipeline for 0e2aed76 succeeds

canceled the automatic merge

merged

mentioned in commit d47702f5