fix: input box disappearing on communities

Fixes #2155

src/app/chat/views/communities.nim

@@ -54,6 +54,8 @@ QtObject:
     var found = false
     for chat in community.chats:
       if (chat.id == newChat.id):
+        # canPost is not available in the newChat so we need to check what we had before
+        newChat.canPost = community.chats[i].canPost
         community.chats[i] = newChat
         found = true
       i = i + 1

ui/app/AppLayouts/Chat/ChatColumn.qml

@@ -286,13 +286,13 @@ StackLayout {
                 id: chatInput
                 visible: {
                     const community = chatsModel.communities.activeCommunity
-                    if (chatsModel.activeChannel.chatType !== Constants.chatTypePrivateGroupChat &&
-                            (!community.active ||
-                            community.access === Constants.communityChatPublicAccess ||
-                            community.admin || chatsModel.activeChannel.canPost)) {
-                        return true
+                    if (chatsModel.activeChannel.chatType === Constants.chatTypePrivateGroupChat) {
+                        return chatsModel.activeChannel.isMember
                     }
-                    return chatsModel.activeChannel.isMember
+                    return !community.active ||
+                            community.access === Constants.communityChatPublicAccess ||
+                            community.admin ||
+                            chatsModel.activeChannel.canPost
                 }
                 enabled: !isBlocked
                 chatInputPlaceholder: isBlocked ?