Overwrite pending profile when reimporting

- Overwrite title field
- Remove old .ovpn

useSuggestedTitle() is only called on load, it will never
overwrite user input unless there's a new import.

Passepartout-iOS/AppDelegate.swift

@@ -115,6 +115,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UISplitViewControllerDele
 
         // already presented: update parsed configuration
         if let nav = target as? UINavigationController, let wizard = nav.topViewController as? WizardHostViewController {
+            if let oldURL = wizard.parsedFile?.url {
+                try? FileManager.default.removeItem(at: oldURL)
+            }
             wizard.parsedFile = parsedFile
             wizard.removesConfigurationOnCancel = true
             return

Passepartout-iOS/Scenes/Organizer/WizardHostViewController.swift

@@ -87,12 +87,7 @@ class WizardHostViewController: UITableViewController, TableModelHost {
     // MARK: Actions
     
     private func useSuggestedTitle() {
-        guard let field = cellTitle?.field else {
+        cellTitle?.field.text = parsedFile?.url.normalizedFilename
-            return
-        }
-        if field.text?.isEmpty ?? true {
-            field.text = parsedFile?.url.normalizedFilename
-        }
     }
     
     @IBAction private func next() {