ref(filmstrip): move presence label styles with similar styles

css/_filmstrip.scss

@@ -111,24 +111,6 @@
                 display: none;
             }
 
-            .presence-label {
-                color: $participantNameColor;
-                font-size: 12px;
-                font-weight: 100;
-                left: 0;
-                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;
-            }
-
             /**
              * Hovered video thumbnail.
              */

css/_videolayout_default.scss

@@ -740,3 +740,21 @@
         visibility: hidden;
     }
 }
+
+.presence-label {
+    color: $participantNameColor;
+    font-size: 12px;
+    font-weight: 100;
+    left: 0;
+    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;
+}