Fix overflow balloon not working (#1949)

Author: xsalonx

lib/public/components/common/popover/overflowBalloon.js

@@ -68,11 +68,12 @@ export const overflowBalloon = (content, options = null) => {
             },
 
             /**
-             * Lifecycle method called when the component is created
-             * @returns {void}
+             * States whether popover is visible
+             *
+             * @returns {boolean} true if visible, false otherwise
              */
             showCondition: function () {
-                doesElementOverflow(this.triggerNode.querySelector('.w-wrapped'));
+                return doesElementOverflow(this.triggerNode.querySelector('.w-wrapped'));
             },
         },
     );