fix analysis

packages/stream_chat_flutter/lib/src/message_input/message_input.dart

@@ -1751,14 +1751,19 @@ class MessageInputState extends State<MessageInput>
   }
 }
 
+/// Preview of an Open Graph attachment.
 class OGAttachmentPreview extends StatelessWidget {
+  /// Returns a new instance of [OGAttachmentPreview]
   const OGAttachmentPreview({
     Key? key,
     required this.attachment,
     this.onDismissPreviewPressed,
   }) : super(key: key);
 
+  /// The attachment to be rendered.
   final Attachment attachment;
+
+  /// Called when the dismiss button is pressed.
   final VoidCallback? onDismissPreviewPressed;
 
   @override
@@ -1773,7 +1778,7 @@ class OGAttachmentPreview extends StatelessWidget {
     return Row(
       children: [
         Padding(
-          padding: const EdgeInsets.all(8.0),
+          padding: const EdgeInsets.all(8),
           child: Icon(
             Icons.link,
             color: colorTheme.accentPrimary,

packages/stream_chat_flutter_core/lib/src/message_text_field_controller.dart

@@ -1,19 +1,24 @@
 import 'package:flutter/material.dart';
 
+/// Controller for the [StreamTextField] widget.
 class MessageTextFieldController extends TextEditingController {
+  /// Returns a new MessageTextFieldController
   MessageTextFieldController({
     String? text,
     this.textPatternStyle,
   }) : super(text: text);
 
+  /// Returns a new MessageTextFieldController with the given text [value].
   MessageTextFieldController.fromValue(
     TextEditingValue? value, {
     this.textPatternStyle,
   }) : super.fromValue(value);
 
+  /// A map of style to apply to the text matching the RegExp patterns.
   final Map<RegExp, TextStyle>? textPatternStyle;
 
-  ///
+  /// Builds a [TextSpan] from the current text,
+  /// highlighting the matches for [textPatternStyle].
   @override
   TextSpan buildTextSpan({
     required BuildContext context,