Rename .js.es6 to .js in the admin application

app/assets/javascripts/admin/controllers/admin-site-text-edit.js

@@ -0,0 +1,42 @@
+import discourseComputed from "discourse-common/utils/decorators";
+import Controller from "@ember/controller";
+import { popupAjaxError } from "discourse/lib/ajax-error";
+import { bufferedProperty } from "discourse/mixins/buffered-content";
+
+export default Controller.extend(bufferedProperty("siteText"), {
+  saved: false,
+
+  @discourseComputed("buffered.value")
+  saveDisabled(value) {
+    return this.siteText.value === value;
+  },
+
+  actions: {
+    saveChanges() {
+      const buffered = this.buffered;
+      this.siteText
+        .save(buffered.getProperties("value"))
+        .then(() => {
+          this.commitBuffer();
+          this.set("saved", true);
+        })
+        .catch(popupAjaxError);
+    },
+
+    revertChanges() {
+      this.set("saved", false);
+      bootbox.confirm(I18n.t("admin.site_text.revert_confirm"), result => {
+        if (result) {
+          this.siteText
+            .revert()
+            .then(props => {
+              const buffered = this.buffered;
+              buffered.setProperties(props);
+              this.commitBuffer();
+            })
+            .catch(popupAjaxError);
+        }
+      });
+    }
+  }
+});