Client: Prepare for dark mode

Author: Zomis

games-vue-client/src/plugins/vuetify.js

@@ -4,4 +4,7 @@ import Vuetify from 'vuetify/lib';
 Vue.use(Vuetify);
 
 export default new Vuetify({
+  theme: {
+    dark: false,
+  },
 });