MacGui: picture settings, use only two text fields (instead of 3). It fits easily now that the UI is wider.
MacGui: renaming and repositioning.
Cleanup after previous patch.
MacGui: rename variable.
MacGui: remove text field.
MacGui: renaming.
MacGui: enlarge preview HUD (80 pixels wider). This makes room for the wider picture settings string.

Note: this was already broken with 1080p and anamorphic custom before the string got longer.
MacGui: second and necessary part of the previous commit.