fix missing variable

Author: thelostone-mc

app/assets/v2/js/grants/landingpage.js

@@ -6,12 +6,19 @@ if (document.getElementById('grants-showcase')) {
     data: {
       activePage: document.activePage,
       state: 'active',
-      mainBanner: document.current_style
+      mainBanner: document.current_style,
+      visibleModal: false,
     },
     computed: {
       isLandingPage() {
         return (this.activePage == 'grants_landing');
-      }
+      },
+      showModal(modalName) {
+        this.visibleModal = modalName;
+      },
+      hideModal() {
+        this.visibleModal = 'none';
+      },
     }
   });
 }