- `chatType` added to `Constants` to group chat type related values
- `messageContentType` added to `Constants` to group message content type related
values
- `MessageStore` maintained per message list now
- added new `ChatContentView` component used to display chat/channel content
- components updated to display messages from the new backend
- `StatusChatToolBar` appropriately updated
- mute/unmute feature added to chat/channel list as well as to `StatusChatToolBar`
The openPopup function was declared in AppMain
and used via dynamic scoping in many places in the
application. Moved function to Global component
and updated all places to call it via Global instead.
Closes#4267
Changes done on the backend side related to the new chat/channel/categories model
are applied here. Necessary changes done on the `statusq` may be seen in PR-486.
Parts of the code which are not refactored yet are commented out.
Displayed chats/categories/channels since now are using refactored backend.
