Feature Request - Make settings more sticky

[mattystevens]

As a user who's adjusted the size of my display, I would like to disable all of this tweaks controls so that I don't change the display size or disable this tweak by mistake.

Acceptance Criteria

1. Once the size and position or the display have been set, double tapping the home button or blank space above the display does not resize the display.

2. The user can disable and re-enable the UI controls for this tweaks through the settings app.