Always visible feature not working correctly with new video page UI

[ParticleCore]

The new video page UI has some changed elements that are causing the feature to malfunction, even if it is turned off.

Seems like some crucial elements are missing from the page which the feature relies on to work properly.

[ParticleCore]

Two checks were not including the setting state before making changes, this then allowed the chain of events to skip crucial steps and make changes:

Iridium/src/firefox/js/background-inject.js

Line 936 in e135560

if (!document.fullscreenElement && window.location.pathname === "/watch" && parentRects.bottom < parentRects.height * .5) {

Iridium/src/firefox/js/background-inject.js

Line 806 in e135560

if (!isAlwaysVisible() || !moviePlayer) {