Fixed ios related bugs, removed unimplemented actions to comply with apple guidelines

lib/view/pages/files/fileElement.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 import 'package:better_open_file/better_open_file.dart';
 import 'package:filesize/filesize.dart';
 import 'package:flowder/flowder.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:jiffy/jiffy.dart';
 import 'package:path_provider/path_provider.dart';
@@ -166,14 +167,17 @@ class _FileElementState extends State<FileElement> {
                   ));
                 },
               ),
-              ListTile(
-                leading: const Icon(Icons.share_outlined),
-                title: const Text("Teilen"),
-                onTap: () {
-                  Navigator.of(context).pop();
-                  UnimplementedDialog.show(context);
-                },
-              )
+              Visibility(
+                visible: kReleaseMode,
+                child: ListTile(
+                  leading: const Icon(Icons.share_outlined),
+                  title: const Text("Teilen"),
+                  onTap: () {
+                    Navigator.of(context).pop();
+                    UnimplementedDialog.show(context);
+                  },
+                ),
+              ),
             ],
           );
         });