tap screen to toggle full width -- precursor to custom ui controls

[hayksaakian]

• removes the jankiness of pressing the fullscreen button in the media player
• it's only temporary until we have custom controls for the media coplayer

concerning #8 #12

ninja patch: return early to prevent #15

[mlburggr]

The toolbar at the bottom disappears when switched to the mini-player. Is this a bug or a feature?