chore: Follow up: Restore bubble padding

lib/widgets/matrix.dart

@@ -484,6 +484,9 @@ class MatrixState extends State<Matrix> with WidgetsBindingObserver {
       store.getItem(SettingKeys.fontSizeFactor).then((value) =>
           AppConfig.fontSizeFactor =
               double.tryParse(value ?? '') ?? AppConfig.fontSizeFactor);
+      store.getItem(SettingKeys.bubbleSizeFactor).then((value) =>
+          AppConfig.bubbleSizeFactor =
+              double.tryParse(value ?? '') ?? AppConfig.bubbleSizeFactor);
       store
           .getItemBool(SettingKeys.renderHtml, AppConfig.renderHtml)
           .then((value) => AppConfig.renderHtml = value);