don't try to render redacted events

lib/models/content/reaction.dart

@@ -3,13 +3,14 @@ import "package:nexus/models/content/content.dart";
 part "reaction.freezed.dart";
 part "reaction.g.dart";
 
-String? keyFromJson(Map<String, dynamic> json) => json["key"];
-
 @freezed
 abstract class ReactionContent extends Content with _$ReactionContent {
   ReactionContent._();
+  static String? keyJsonFromJson(Map<dynamic, dynamic> json, String key) =>
+      json["m.relates_to"]?["key"];
+
   factory ReactionContent({
-    @JsonKey(fromJson: keyFromJson, name: "m.relates_to") String? key,
+    @JsonKey(readValue: ReactionContent.keyJsonFromJson) String? key,
   }) = _ReactionContent;
 
   factory ReactionContent.fromJson(Map<String, Object?> json) =>

lib/widgets/chat_page/render_event.dart

@@ -62,12 +62,14 @@ class RenderEvent extends ConsumerWidget {
             children: getEventOptions!(event).toList(),
           );
 
+    if (event.redactedBy != null) return SizedBox.shrink();
+
     final child = switch (event.content) {
       Content(:final parseError?) => SelectableText(
-        "An error occurred while parsing this event:\n$parseError",
+        "An error occurred while parsing this event:\n$parseError\n${parseError.stackTrace}",
         style: errorStyle,
       ),
-      EncryptedContent() => Text("Unable to decrypt event"),
+      EncryptedContent() => Text("Unable to decrypt event", style: errorStyle),
       MessageContent() => Row(
         crossAxisAlignment: CrossAxisAlignment.start,
         spacing: 8,

lib/widgets/link_preview.dart

@@ -24,6 +24,7 @@ class LinkPreview extends ConsumerWidget {
                       .watch(LaunchHelper.provider)
                       .launchUrl(Uri.parse(link)),
                   child: Card(
+                    margin: EdgeInsets.symmetric(vertical: 4),
                     color: Theme.of(
                       context,
                     ).colorScheme.surfaceContainerHighest,