Hide mobile download (#3543)

* Use correct route when join class by link

* Hide room download buttons if not web

lib/pangea/chat_settings/pages/pangea_chat_details.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:collection/collection.dart';
@@ -391,14 +392,14 @@ class RoomDetailsButtonRowState extends State<RoomDetailsButtonRow> {
             builder: (context) => DownloadAnalyticsDialog(space: room),
           );
         },
-        visible: room.isSpace && room.isRoomAdmin,
+        visible: room.isSpace && room.isRoomAdmin && kIsWeb,
         showInMainView: false,
       ),
       ButtonDetails(
         title: l10n.download,
         icon: const Icon(Icons.download_outlined, size: 30.0),
         onPressed: widget.controller.downloadChatAction,
-        visible: room.ownPowerLevel >= 50 && !room.isSpace,
+        visible: room.ownPowerLevel >= 50 && !room.isSpace && kIsWeb,
         showInMainView: false,
       ),
       ButtonDetails(

lib/pangea/chat_settings/widgets/download_space_analytics_button.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:matrix/matrix.dart';
@@ -15,6 +16,9 @@ class DownloadSpaceAnalyticsButton extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    if (!kIsWeb) {
+      return const SizedBox.shrink();
+    }
     final iconColor = Theme.of(context).textTheme.bodyLarge!.color;
     return Column(
       children: [