Fix the example

example/pubspec.yaml

@@ -14,15 +14,15 @@ dependencies:
   cupertino_icons: ^1.0.6
   path_provider: ^2.1.1
   filesystem_picker: ^4.0.0
-  file_picker: ^6.0.0
+  file_picker: ^6.1.1
-  flutter_quill:
+  flutter_quill: ^8.1.10
-    path: ../
+  flutter_quill_extensions: ^0.5.0
-  flutter_quill_extensions:
-    path: ../flutter_quill_extensions
 
 dependency_overrides:
   flutter_quill:
     path: ../
+  flutter_quill_extensions:
+    path: ../flutter_quill_extensions
 
 dev_dependencies:
   flutter_test:

flutter_quill_extensions/lib/presentation/embeds/editor/image/image.dart

@@ -77,12 +77,12 @@ class QuillEditorImageEmbedBuilder extends EmbedBuilder {
                 : double.tryParse(Attribute.margin)) ??
             0.0;
 
-        assert(
+        // assert(
-          width != null && height != null,
+        //   width != null && height != null,
-          base.isMobile()
+        //   base.isMobile()
-              ? 'mobileWidth and mobileHeight must be specified'
+        //       ? 'mobileWidth and mobileHeight must be specified'
-              : 'width and height must be specified',
+        //       : 'width and height must be specified',
-        );
+        // );
         imageSize = OptionalSize(width, height);
         image = Padding(
           padding: EdgeInsets.all(margin),

lib/src/models/structs/optional_size.dart

@@ -1,5 +1,8 @@
+import 'package:meta/meta.dart' show immutable;
+
+@immutable
 class OptionalSize {
-  OptionalSize(
+  const OptionalSize(
     this.width,
     this.height,
   );