show senders for both messages and stickers in reply previews

lib/widgets/event_preview.dart

@@ -1,5 +1,6 @@
 import "package:material_ui/material_ui.dart";
 import "package:nexus/models/content/message.dart";
+import "package:nexus/models/content/sticker.dart";
 import "package:nexus/models/event.dart";
 import "package:nexus/widgets/lazy_loading/message_avatar.dart";
 import "package:nexus/widgets/lazy_loading/message_displayname.dart";
@@ -8,33 +9,39 @@ import "package:nexus/widgets/renderers/event.dart";
 class const EventPreview(final Event event, {super.key})
     extends StatelessWidget {
   @override
-  Widget build(BuildContext context) => IgnorePointer(
+  Widget build(BuildContext context) {
-    child: Padding(
+    final showSender = switch (event.content) {
-      padding: .symmetric(vertical: 4),
+      MessageContent() || StickerContent() => true,
-      child: Row(
+      _ => false,
-        mainAxisSize: .min,
+    };
-        spacing: 8,
-        children: [
-          if (event.content is MessageContent) MessageAvatar(event, height: 36),
 
-          Flexible(
+    return IgnorePointer(
-            child: Column(
+      child: Padding(
-              mainAxisAlignment: .center,
+        padding: .symmetric(vertical: 4),
-              crossAxisAlignment: .start,
+        child: Row(
-              children: [
+          mainAxisSize: .min,
-                if (event.content is MessageContent)
+          spacing: 8,
-                  MessageDisplayname(event, shouldWrap: false),
+          children: [
-                EventRenderer(
+            if (showSender) MessageAvatar(event, height: 36),
-                  event.rowId,
+
-                  roomId: event.roomId,
+            Flexible(
-                  textOnly: true,
+              child: Column(
-                  maxLines: 1,
+                mainAxisAlignment: .center,
-                ),
+                crossAxisAlignment: .start,
-              ],
+                children: [
+                  if (showSender) MessageDisplayname(event, shouldWrap: false),
+                  EventRenderer(
+                    event.rowId,
+                    roomId: event.roomId,
+                    textOnly: true,
+                    maxLines: 1,
+                  ),
+                ],
+              ),
             ),
-          ),
+          ],
-        ],
+        ),
       ),
-    ),
+    );
-  );
+  }
 }