✨ Chat attachments

lib/screens/channel/channel_chat.dart

@@ -145,8 +145,6 @@ class _ChannelChatScreenState extends State<ChannelChatScreen> {
         padding: EdgeInsets.only(
           top: !isMerged ? 8 : 0,
           bottom: !hasMerged ? 8 : 0,
-          left: 12,
-          right: 12,
         ),
         child: ChatMessage(
           item: item,

lib/screens/posts/post_publish.dart

@@ -45,7 +45,7 @@ class _PostPublishingScreenState extends State<PostPublishingScreen> {
 
   List<int> _attachments = List.empty();
 
-  void showAttachments(BuildContext context) {
+  void showAttachments() {
     showModalBottomSheet(
       context: context,
       builder: (context) => AttachmentPublishingPopup(
@@ -258,7 +258,7 @@ class _PostPublishingScreenState extends State<PostPublishingScreen> {
                     TextButton(
                       style: TextButton.styleFrom(shape: const CircleBorder()),
                       child: const Icon(Icons.camera_alt),
-                      onPressed: () => showAttachments(context),
+                      onPressed: () => showAttachments(),
                     )
                   ],
                 ),

lib/screens/social.dart

@@ -82,6 +82,8 @@ class _SocialScreenState extends State<SocialScreen> {
                   sliver: SliverAppBar(
                     title: Text('social'.tr),
                     centerTitle: false,
+                    floating: true,
+                    snap: true,
                     titleSpacing:
                         SolianTheme.isLargeScreen(context) ? null : 24,
                     forceElevated: innerBoxIsScrolled,