refactoring

app.js

@@ -161,7 +161,9 @@ var app = new Vue({
                 parse_language: 'en',
                 display_language: 'de'
             },
-            toast_length: 3000
+            toast: {
+                displayLength: 3000
+            }
         },
     },
     watch: {
@@ -200,10 +202,9 @@ var app = new Vue({
         },
 
         makeToast(message) {
-            M.toast({
-                html: message,
-                displayLength: this.config.toast_length
-            });
+            var toastOptions = this.config.toast;
+            toastOptions.html = message;
+            M.toast(toastOptions);
         },
 
         onFileChange: function (event) {