sorted participants list alphabetically

lib/view/pages/talk/chatDetails/participants/participantsListView.dart

@@ -13,16 +13,23 @@ class ParticipantsListView extends StatefulWidget {
 
 class _ParticipantsListViewState extends State<ParticipantsListView> {
   @override
-  Widget build(BuildContext context) => Scaffold(
+  Widget build(BuildContext context) {
+    final participants = widget.participantsResponse.data.map((participant) => ListTile(
+      leading: UserAvatar(id: participant.actorId),
+      title: Text(participant.displayName),
+      subtitle: participant.statusMessage != null ? Text(participant.statusMessage!) : null,
+    )).toList();
+
+    lastname(participant) => participant.title.toString().split(' ').last;
+    participants.sort((a, b) => lastname(a).compareTo(lastname(b)));
+
+    return Scaffold(
       appBar: AppBar(
         title: const Text('Teilnehmende'),
       ),
       body: ListView(
-        children: widget.participantsResponse.data.map((participant) => ListTile(
+        children: participants,
-            leading: UserAvatar(id: participant.actorId),
-            title: Text(participant.displayName),
-            subtitle: participant.statusMessage != null ? Text(participant.statusMessage!) : null,
-          )).toList(),
       ),
     );
   }
+}

lib/view/pages/talk/components/chatMessage.dart

@@ -21,25 +21,22 @@ class ChatMessage {
   ChatMessage({required this.originalMessage, this.originalData}) {
     if(originalData?.containsKey('file') ?? false) {
       file = originalData?['file'];
-    }
+      content = file?.name ?? 'Datei';
+    } else {
       content = RichObjectStringProcessor.parseToString(originalMessage, originalData);
     }
+  }
 
   Widget getWidget() {
 
-    var contentWidget = Linkify(
+    if(file == null) {
+      return Linkify(
         text: content,
         onOpen: onOpen,
       );
+    }
 
-    if(file == null) return contentWidget;
+    return Padding(padding: const EdgeInsets.only(top: 5), child: CachedNetworkImage(
-
-    return Padding(
-        padding: const EdgeInsets.only(top: 5),
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            CachedNetworkImage(
       errorWidget: (context, url, error) => Row(
           mainAxisSize: MainAxisSize.min,
           crossAxisAlignment: CrossAxisAlignment.center,
@@ -56,12 +53,7 @@ class ChatMessage {
       fadeOutDuration: Duration.zero,
       errorListener: (value) {},
       imageUrl: 'https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/index.php/core/preview?fileId=${file!.id}&x=100&y=-1&a=1',
-            ),
+    ));
-            SizedBox(height: 5),
-            contentWidget
-          ],
-        )
-    );
   }
 
   Future<void> onOpen(LinkableElement link) async {