Add missing super.init calls

js/admin/src/components/AppearancePage.js

@@ -6,6 +6,8 @@ import saveSettings from 'flarum/utils/saveSettings';
 
 export default class AppearancePage extends Page {
   init() {
+    super.init();
+
     this.primaryColor = m.prop(app.settings.theme_primary_color);
     this.secondaryColor = m.prop(app.settings.theme_secondary_color);
     this.darkMode = m.prop(app.settings.theme_dark_mode === '1');

js/admin/src/components/BasicsPage.js

@@ -8,6 +8,8 @@ import ItemList from 'flarum/utils/ItemList';
 
 export default class BasicsPage extends Page {
   init() {
+    super.init();
+
     this.loading = false;
 
     this.fields = [

js/admin/src/components/ExtensionsPage.js

@@ -11,7 +11,6 @@ import listItems from 'flarum/helpers/listItems';
 
 export default class ExtensionsPage extends Page {
   view() {
-
     return (
       <div className="ExtensionsPage">
         <div className="ExtensionsPage-header">