icon css tweak

src/mol-plugin-ui/skin/base/components/controls-base.scss

@@ -92,7 +92,7 @@
     svg {
         display: inline-flex;
         vertical-align: middle;
-        font-size: 1rem;
+        font-size: 1.2em;
         margin-bottom: 3px;
 
         fill: currentColor;