Merge pull request #1057 from jitsi/fix_connection_problem_z_idx

Reduce the z index of the connection problems message

css/_videolayout_default.scss

     display: none;
     position: absolute;
     width: auto;
-    z-index: 1011;
+    z-index: 2;
     font-weight: 600;
     font-size: 14px;
     text-align: center;
     position: absolute;
     width: 100%;
     top:50%;
-    z-index: 1011;
+    z-index: 2;
     font-weight: 600;
     font-size: 14px;
     text-align: center;