fix(presence-label): set position for small video presence label only

css/_videolayout_default.scss

     margin: 0 auto;
     overflow: hidden;
     pointer-events: none;
-    position: absolute;
     right: 0;
     text-align: center;
     text-overflow: ellipsis;
     top: calc(50% + 30px);
     white-space: nowrap;
     width: 100%;
-    z-index: $zindex3;
 }

css/filmstrip/_small_video.scss

         object-fit: cover;
         overflow: hidden;
     }
+
+    .presence-label {
+        position: absolute;
+        z-index: $zindex3;
+    }
 }