Fixed video player in full-screen being behind controls.

src/manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Better Youtube +",
-  "version": "1.2.9",
+  "version": "1.3.0",
   "description": "Enhancements for Youtube to have a better experience.",
 
   "applications": {

src/styles/betterYoutube.css

@@ -13,6 +13,10 @@
     text-align: center;
 }
 
+#enhancerMenuIDRef, #slugCopyZone {
+    z-index: 5;
+}
+
 .ytThumbMenuStyle {
   display: none;
   bottom: 20px;