Super theater, always visible, changes, and fixes

This version comes with two new features:

Super theater

This feature allows the player to fill the entire browser view when in theater mode. If the chat is open, then it will be displayed to the right of the player.

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Always visible

When scrolling down the video page the player will become a fixed mini player whenever there is less than 50% of the video visible. This mini player can be moved around and snapped to the edges of the browser by holding the right mouse button.

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Changes to scroll volume

The feature now requires holding Shift + scroll in order to change volume in a video page. This can be done anywhere in the page as well. The change to only activate with a key combination is to avoid issues with situations where the player occupies a large area of the screen, or in the case of the super theater, occupies the entire screen.

Fixes

Some fixes are included with this update

For a complete list of changes check the milestone: https://github.com/ParticleCore/Iridium/milestone/19?closed=1