fix(FEC-9980): custom preset controls are continuously blinking on ho…

…vering the bottom bar (#497)

Problem: Once the hovering timeout is done the shell is updating the store with playerHover:false which causes a renderer, but at this time the mouse is still hovering the shell so in onMouseOver the shell is updating the store with playerHover:true, and so on for ever...
(This reproduce in the preact version 8.x (current) only when custom preset is set, but in preactX even with our default presets)

Solution: remove the state updating from onMouseOver as it's redundant since onMouseMove

Solves: FEC-9980

src/components/shell/shell.js

@@ -101,9 +101,6 @@ class Shell extends Component {
       this.setState({nav: false});
       this.props.updatePlayerNavState(false);
     }
-    if (!this.props.bottomBarHoverActive) {
-      this._updatePlayerHoverState();
-    }
   }
 
   /**