Use better launch path for CLI

writeas/ViewController.swift

@@ -98,7 +98,7 @@ class ViewController: NSViewController, NSTextViewDelegate, NSUserNotificationCe
 
         DispatchQueue.global(qos: .background).async {
             let task = Process()
-            task.launchPath = Bundle.main.executablePath! + "/../../Resources/writeas"
+            task.launchPath = Bundle.main.resourcePath! + "/writeas"
             task.arguments = ["--font", Preferences.getFont().rawValue]
             let pipe = Pipe()
             task.standardInput = pipe