Make restarting more reliable

Passing `-n` to `open` makes sure that even if
the current instance of app is running, we launch
the new instance.

Previously, restart worked only if `open` was invoked,
but somehow it hadn't gotten around to launching the
fresh instance, and thus current instance had time to
terminate.

AlfredExtraPane.xcodeproj/project.pbxproj

@@ -413,7 +413,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 11.0;
-				MARKETING_VERSION = 0.2.4;
+				MARKETING_VERSION = 0.2.5;
 				ONLY_ACTIVE_ARCH = NO;
 				OTHER_CODE_SIGN_FLAGS = "--deep";
 				PRODUCT_BUNDLE_IDENTIFIER = mr.pennyworth.AlfredExtraPane;
@@ -434,7 +434,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 11.0;
-				MARKETING_VERSION = 0.2.4;
+				MARKETING_VERSION = 0.2.5;
 				ONLY_ACTIVE_ARCH = NO;
 				OTHER_CODE_SIGN_FLAGS = "--deep";
 				PRODUCT_BUNDLE_IDENTIFIER = mr.pennyworth.AlfredExtraPane;

AlfredExtraPane/Menu.swift

@@ -76,7 +76,7 @@ extension AppDelegate {
   @objc func restart() {
     let task = Process()
     task.launchPath = "/usr/bin/open"
-    task.arguments = [Bundle.main.bundlePath]
+    task.arguments = ["-n", Bundle.main.bundlePath]
     task.launch()
     NSApplication.shared.terminate(nil)
   }