design: Highlight emoji only messages

lib/pages/chat/events/message.dart

@@ -122,12 +122,17 @@ class Message extends StatelessWidget {
       bottomRight:
           ownMessage && previousEventSameSender ? hardCorner : roundedCorner,
     );
-    final noBubble = {
-          MessageTypes.Video,
-          MessageTypes.Image,
-          MessageTypes.Sticker,
-        }.contains(event.messageType) &&
-        !event.redacted;
+    final noBubble = ({
+              MessageTypes.Video,
+              MessageTypes.Image,
+              MessageTypes.Sticker,
+            }.contains(event.messageType) &&
+            !event.redacted) ||
+        (event.messageType == MessageTypes.Text &&
+            event.relationshipType == null &&
+            event.onlyEmotes &&
+            event.numberEmotes > 0 &&
+            event.numberEmotes <= 3);
     final noPadding = {
       MessageTypes.File,
       MessageTypes.Audio,

lib/pages/chat/events/message_content.dart

@@ -251,7 +251,7 @@ class MessageContent extends StatelessWidget {
             }
             final bigEmotes = event.onlyEmotes &&
                 event.numberEmotes > 0 &&
-                event.numberEmotes <= 10;
+                event.numberEmotes <= 3;
             return Linkify(
               text: event.calcLocalizedBodyFallback(
                 MatrixLocals(L10n.of(context)),
@@ -259,13 +259,13 @@ class MessageContent extends StatelessWidget {
               ),
               style: TextStyle(
                 color: textColor,
-                fontSize: bigEmotes ? fontSize * 3 : fontSize,
+                fontSize: bigEmotes ? fontSize * 6 : fontSize,
                 decoration: event.redacted ? TextDecoration.lineThrough : null,
               ),
               options: const LinkifyOptions(humanize: false),
               linkStyle: TextStyle(
                 color: textColor.withAlpha(150),
-                fontSize: bigEmotes ? fontSize * 3 : fontSize,
+                fontSize: fontSize,
                 decoration: TextDecoration.underline,
                 decorationColor: textColor.withAlpha(150),
               ),