fix: dont use thumbnails for emoticons

lib/pages/chat/events/html_message.dart

@@ -272,14 +272,18 @@ class ImageExtension extends HtmlExtension {
     final width = double.tryParse(context.attributes['width'] ?? '');
     final height = double.tryParse(context.attributes['height'] ?? '');
 
+    final actualWidth = width ?? height ?? defaultDimension;
+    final actualHeight = height ?? width ?? defaultDimension;
+
     return WidgetSpan(
       child: SizedBox(
-        width: width ?? height ?? defaultDimension,
-        height: height ?? width ?? defaultDimension,
+        width: actualWidth,
+        height: actualHeight,
         child: MxcImage(
           uri: mxcUrl,
-          width: width ?? height ?? defaultDimension,
-          height: height ?? width ?? defaultDimension,
+          width: actualWidth,
+          height: actualHeight,
+          isThumbnail: (actualWidth * actualHeight) > (256 * 256),
         ),
       ),
     );

lib/pages/chat/events/message_reactions.dart

@@ -122,6 +122,7 @@ class _Reaction extends StatelessWidget {
             width: 20,
             height: 20,
             animated: false,
+            isThumbnail: false,
           ),
           if (count > 1) ...[
             const SizedBox(width: 4),

lib/pages/chat/input_bar.dart

@@ -276,6 +276,7 @@ class InputBar extends StatelessWidget {
                   : null,
               width: size,
               height: size,
+              isThumbnail: false,
             ),
             const SizedBox(width: 6),
             Text(suggestion['name']!),

lib/pages/chat/sticker_picker_dialog.dart

@@ -92,6 +92,7 @@ class StickerPickerDialogState extends State<StickerPickerDialog> {
                     width: 128,
                     height: 128,
                     animated: true,
+                    isThumbnail: false,
                   ),
                 ),
               );

lib/pages/settings_emotes/settings_emotes_view.dart

@@ -247,6 +247,7 @@ class _EmoteImage extends StatelessWidget {
         fit: BoxFit.contain,
         width: size,
         height: size,
+        isThumbnail: false,
       ),
     );
   }