rename method showImageCropper to showGallery

deltachat-ios/Coordinator/AppCoordinator.swift

@@ -231,7 +231,7 @@ class EditSettingsCoordinator: Coordinator {
     }
 
     func showPhotoPicker(delegate: MediaPickerDelegate) {
-        mediaPicker.showImageCropper(delegate: delegate)
+        mediaPicker.showGallery(delegate: delegate)
     }
 
     func showCamera(delegate: MediaPickerDelegate) {
@@ -591,7 +591,7 @@ class GroupNameCoordinator: Coordinator {
     }
 
     func showPhotoPicker(delegate: MediaPickerDelegate) {
-          mediaPicker.showImageCropper(delegate: delegate)
+          mediaPicker.showGallery(delegate: delegate)
       }
 
       func showCamera(delegate: MediaPickerDelegate) {

deltachat-ios/Helper/MediaPicker.swift

@@ -15,7 +15,7 @@ class MediaPicker: NSObject, UINavigationControllerDelegate, UIImagePickerContro
         self.navigationController = navigationController
     }
 
-    func showImageCropper(delegate: MediaPickerDelegate) {
+    func showGallery(delegate: MediaPickerDelegate) {
         let croppingParameters = CroppingParameters(isEnabled: true,
                                                     allowResizing: true,
                                                     allowMoving: true,