Set window position in native selector based on data from extension

app/NativeMacReceiverSelector/ViewController.swift

@@ -21,24 +21,7 @@ class ViewController : NSViewController {
     override func viewDidLoad () {
         super.viewDidLoad()
 
-        if (CommandLine.argc < 2) {
-            fputs("Error: Not enough args\n", stderr)
-            exit(1)
-        }
-
-        guard let data = CommandLine.arguments[1].data(using: .utf8) else {
-            fputs("Error: Failed to convert input to data\n", stderr)
-            exit(1)
-        }
-
-        do {
-            // Decode and store initialization JSON data
-            self.initData = try JSONDecoder().decode(InitData.self, from: data)
-        } catch {
-            fputs("Error: Failed to parse input data\n", stderr)
-            exit(1)
-        }
-
+        self.initData = (NSApplication.shared.delegate as! AppDelegate).initData
 
         /**
          * View Hierarchy