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

lib/api/marianumcloud/webdav/queries/listFiles/listFiles.dart

@@ -1,6 +1,7 @@
 
 import 'package:nextcloud/nextcloud.dart';
 
+import '../../../../../model/endpointData.dart';
 import '../../webdavApi.dart';
 import 'cacheableFile.dart';
 import 'listFilesParams.dart';
@@ -14,9 +15,19 @@ class ListFiles extends WebdavApi<ListFilesParams> {
   @override
   Future<ListFilesResponse> run() async {
     List<WebDavFile> davFiles = (await (await WebdavApi.webdav).propfind(params.path)).toWebDavFiles();
-    davFiles.removeWhere((element) => element.path == "/${params.path}/" || element.path == "/"); // somehow the current working folder is also listed, it is filtered here.
     Set<CacheableFile> files = davFiles.map((e) => CacheableFile.fromDavFile(e)).toSet();
 
+    // webdav handles subdirectories wrong, this is a fix
+    if(EndpointData().getEndpointMode() == EndpointMode.stage) {
+      files = files.map((e) { // somehow
+        e.path = e.path.split("mobile/cloud/remote.php/webdav")[1];
+        return e;
+      }).toSet();
+    }
+
+    // somehow the current working folder is also listed, it is filtered here.
+    files.removeWhere((element) => element.path == "/${params.path}/" || element.path == "/");
+
     return ListFilesResponse(files);
   }
 }

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(
+              Visibility(
+                visible: kReleaseMode,
+                child: ListTile(
                   leading: const Icon(Icons.share_outlined),
                   title: const Text("Teilen"),
                   onTap: () {
                     Navigator.of(context).pop();
                     UnimplementedDialog.show(context);
                   },
-              )
+                ),
+              ),
             ],
           );
         });

lib/view/pages/files/fileUploadDialog.dart

@@ -43,7 +43,7 @@ class _FileUploadDialogState extends State<FileUploadDialog> {
       setState(() {
         state = FileUploadState.checkConflict;
       });
-      await (await WebdavApi.webdav).mkcol(widget.remotePath.join("/"));
+      //await (await WebdavApi.webdav).mkcol(widget.remotePath.join("/")); // TODO is this needed? It does not work anymore...
       List<WebDavResponse> result = (await webdavClient.propfind(widget.remotePath.join("/"))).responses;
       if(result.any((element) => element.href!.endsWith("/$targetFileName"))) {
         setState(() {

lib/view/pages/files/files.dart

@@ -209,7 +209,9 @@ class _FilesState extends State<Files> {
                     Navigator.of(context).pop();
                   },
                 ),
-                ListTile(
+                Visibility(
+                  visible: !Platform.isIOS,
+                  child: ListTile(
                     leading: const Icon(Icons.add_a_photo_outlined),
                     title: const Text("Aus Gallerie hochladen"),
                     onTap: () {
@@ -220,6 +222,7 @@ class _FilesState extends State<Files> {
                       Navigator.of(context).pop();
                     },
                   ),
+                ),
               ],
             );
           });

lib/view/pages/talk/messageReactions.dart

@@ -1,4 +1,5 @@
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import '../../../api/marianumcloud/talk/getReactions/getReactions.dart';
@@ -54,10 +55,13 @@ class _MessageReactionsState extends State<MessageReactions> {
                       leading: const CenteredLeading(Icon(Icons.person)),
                       title: Text(e.actorDisplayName),
                       subtitle: isSelf ? const Text("Du") : e.actorType == GetReactionsResponseObjectActorType.guests ? const Text("Gast") : null,
-                      trailing: isSelf ? null : IconButton(
+                      trailing: isSelf ? null : Visibility(
+                        visible: kReleaseMode,
+                        child: IconButton(
                           onPressed: () => UnimplementedDialog.show(context),
                           icon: const Icon(Icons.textsms_outlined),
                         ),
+                      ),
                     );
                   }).toList(),
                 );

lib/view/pages/timetable/appointmentDetails.dart

@@ -1,4 +1,5 @@
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:jiffy/jiffy.dart';
 import 'package:persistent_bottom_nav_bar/persistent_tab_view.dart';
@@ -73,13 +74,16 @@ class AppointmentDetails {
               ListTile(
                 leading: const Icon(Icons.person),
                 title: Text("Lehrkraft: (${timetableData.te[0].name}) ${timetableData.te[0].longname}"),
-                trailing: IconButton(
+                trailing: Visibility(
+                  visible: kReleaseMode,
+                  child: IconButton(
                     icon: const Icon(Icons.textsms_outlined),
                     onPressed: () {
                       UnimplementedDialog.show(context);
                     },
                   ),
                 ),
+              ),
               ListTile(
                 leading: const Icon(Icons.abc),
                 title: Text("Typ: ${timetableData.activityType}"),