add missing permissions and ui

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

@@ -473,9 +473,12 @@ class MessageInputState extends State<MessageInput>
         .channel
         .ownCapabilities
         .contains(PermissionType.sendMessage)) {
-      return SizedBox(
-        height: 50,
-        child: FittedBox(
+      return SafeArea(
+        child: Padding(
+          padding: const EdgeInsets.symmetric(
+            horizontal: 24,
+            vertical: 15,
+          ),
           child: Text(
             context.translations.sendMessagePermissionError,
             style: _messageInputTheme.inputTextStyle,

packages/stream_chat_flutter/lib/src/message_list_view.dart

@@ -1147,7 +1147,10 @@ class _MessageListViewState extends State<MessageListView> {
       },
       showEditMessage: isMyMessage,
       showDeleteMessage: isMyMessage,
-      showThreadReplyMessage: !isThreadMessage,
+      showThreadReplyMessage: !isThreadMessage &&
+          streamChannel?.channel.ownCapabilities
+                  .contains(PermissionType.sendReply) ==
+              true,
       showFlagButton: !isMyMessage,
       borderSide: borderSide,
       onThreadTap: _onThreadTap,

packages/stream_chat_flutter/lib/src/message_widget.dart

@@ -1095,7 +1095,8 @@ class _MessageWidgetState extends State<MessageWidget>
             showSendingIndicator: false,
             padding: const EdgeInsets.all(0),
             showReactionPickerIndicator: widget.showReactions &&
-                (widget.message.status == MessageSendingStatus.sent),
+                (widget.message.status == MessageSendingStatus.sent) &&
+                channel.ownCapabilities.contains(PermissionType.sendReaction),
             showPinHighlight: false,
             showUserAvatar:
                 widget.message.user!.id == channel.client.state.currentUser!.id
@@ -1151,7 +1152,8 @@ class _MessageWidgetState extends State<MessageWidget>
             showSendingIndicator: false,
             padding: const EdgeInsets.all(0),
             showReactionPickerIndicator: widget.showReactions &&
-                (widget.message.status == MessageSendingStatus.sent),
+                (widget.message.status == MessageSendingStatus.sent) &&
+                channel.ownCapabilities.contains(PermissionType.sendReaction),
             showPinHighlight: false,
             showUserAvatar:
                 widget.message.user!.id == channel.client.state.currentUser!.id
@@ -1162,7 +1164,8 @@ class _MessageWidgetState extends State<MessageWidget>
           messageTheme: widget.messageTheme,
           reverse: widget.reverse,
           message: widget.message,
-          showReactions: widget.showReactions,
+          showReactions: widget.showReactions &&
+              channel.ownCapabilities.contains(PermissionType.sendReaction),
         ),
       ),
     );