show success alert + rebuild msg when ordering plugins

public/language/en-GB/admin/extend/plugins.json

@@ -44,6 +44,8 @@
 	"alert.package-manager-unreachable": "<p>NodeBB could not reach the package manager, an upgrade is not suggested at this time.</p>",
 	"alert.incompatible": "<p>Your version of NodeBB (v%1) is only cleared to upgrade to v%2 of this plugin. Please update your NodeBB if you wish to install a newer version of this plugin.</p>",
 	"alert.possibly-incompatible": "<div class=\"alert alert-warning\"><p><strong>No Compatibility Information Found</strong></p><p>This plugin did not specify a specific version for installation given your NodeBB version. Full compatibility cannot be guaranteed, and may cause your NodeBB to no longer start properly.</p></div><p>In the event that NodeBB cannot boot properly:</p><pre><code>$ ./nodebb reset plugin=\"%1\"</code></pre><p>Continue installation of latest version of this plugin?</p>",
+	"alert.reorder": "Plugins Re-ordered",
+	"alert.reorder-success": "Please rebuild and restart your NodeBB to fully complete the process.",
 
 	"license.title": "Plugin License Information",
 	"license.intro": "The plugin <strong>%1</strong> is licensed under the %2. Please read and understand the license terms prior to activating this plugin.",

public/src/admin/extend/plugins.js

@@ -182,6 +182,19 @@ define('admin/extend/plugins', ['jqueryui', 'translator', 'benchpress'], functio
 					return app.alertError(err.message);
 				}
 				$('#order-active-plugins-modal').modal('hide');
+
+				app.alert({
+					alert_id: 'plugin_reordered',
+					title: '[[admin/extend/plugins:alert.reorder]]',
+					message: '[[admin/extend/plugins:alert.reorder-success]]',
+					type: 'success',
+					timeout: 5000,
+					clickfn: function () {
+						require(['admin/modules/instance'], function (instance) {
+							instance.rebuildAndRestart();
+						});
+					},
+				});
 			});
 		});