Fix incorrect styles in the descriptor selector

Author: alansemenov

modules/lib/src/main/resources/assets/styles/view/widget-preview-panel.less

@@ -70,7 +70,6 @@
 
   .no-preview-message,
   .no-selection-message {
-
     &.icon-blocked::before {
       position: absolute;
       top: 50%;
@@ -82,8 +81,6 @@
       z-index: 1;
     }
 
-    .watermark-text(21px, true);
-
     position: static;
     top: 0;
     height: 100%;
@@ -95,6 +92,7 @@
     flex-direction: column;
 
     span {
+      .watermark-text(21px, true);
       white-space: normal;
       display: block;
     }