fix(watermarks): bring watermarks to the top

Signed-off-by: Joshua Irmer <irmer@gonicus.de>

css/_base.scss

@@ -111,7 +111,7 @@ form {
     height: $watermarkHeight;
     background-size: contain;
     background-repeat: no-repeat;
-    z-index: $zindex2;
+    z-index: $watermarkZ;
 }
 
 .leftwatermark {
@@ -142,7 +142,7 @@ form {
     font-size: 11pt;
     color: rgba(255,255,255,.50);
     text-decoration: none;
-    z-index: 100;
+    z-index: $watermarkZ;
 }
 
 /**

css/_variables.scss

@@ -38,6 +38,8 @@ $zindex1: 1;
 $zindex2: 2;
 $zindex3: 3;
 $toolbarZ: 250;
+$watermarkZ: 253;
+
 // Place filmstrip videos over toolbar in order
 // to make connection info visible.
 $filmstripVideosZ: $toolbarZ + 1;