fix: show chrome on pointermove for custom video (#604)

this makes media chrome show the controls even when the pointermove is
detected from `media-controller`.

for some custom video elements is not possible always to detect this
from the media element itself because of pointerevents none on the child
elements in the media element.

I think it's okay but let me know if you see any issues with this

fixes #451 related #298

src/js/media-container.js

@@ -498,8 +498,6 @@ class MediaContainer extends window.HTMLElement {
       // so, only run pointermove for mouse
       if (e.pointerType !== 'mouse') return;
 
-      if (e.target === this) return;
-
       setActive();
       // Stay visible if hovered over control bar
       window.clearTimeout(this._inactiveTimeout);