Mark category as read (#24003)

* Mark category as read

* Fix lint and test

* Fix tests

* Fix test and remove wrong aria

* Address server issues and add mark as read for unreads

* Missing changes

* Fix tests

* fix tests

* Add confirmation popup to mark as read category

* Always use viewMultipleChannels and other fixes

* Remove unneeded code

* Fix test

* Address feedback

* Address feedback

* Fix tests

* Fix test

* Fix tests

* Update aria-haspopup depending on the number of channels to mark as viewed

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Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/app/platform/web_conn.go

@@ -726,7 +726,7 @@ func (wc *WebConn) ShouldSendEvent(msg *model.WebSocketEvent) bool {
 		switch msg.EventType() {
 		case model.WebsocketEventTyping,
 			model.WebsocketEventStatusChange,
-			model.WebsocketEventChannelViewed:
+			model.WebsocketEventMultipleChannelsViewed:
 			if time.Since(wc.lastLogTimeSlow) > websocketSuppressWarnThreshold {
 				mlog.Warn(
 					"websocket.slow: dropping message",