PLT-4167 Team Sidebar (#4569)

* PLT-4167 Team Sidebar

* Address feedback from PM

* change route from my_members to members

* bug fixes

* Updating styles for teams sidebar (#4681)

* Added PM changes

* Fix corner cases

* Addressing feedback

* use two different endpoints

* Bug fixes

* Rename model and client functions, using preferences to store last team and channel viewed

* Fix mobile notification count and closing the team sidebar

* unit test, fixed bad merge and retrieve from cached when available

* bug fixes

* use id for last channel in preferences, query optimization

* Updating multi team css (#4830)

api/channel.go

@@ -846,14 +846,21 @@ func setLastViewedAt(c *Context, w http.ResponseWriter, r *http.Request) {
 
 	Srv.Store.Channel().SetLastViewedAt(id, c.Session.UserId, newLastViewedAt)
 
-	preference := model.Preference{
+	chanPref := model.Preference{
 		UserId:   c.Session.UserId,
-		Category: model.PREFERENCE_CATEGORY_LAST,
+		Category: c.TeamId,
 		Name:     model.PREFERENCE_NAME_LAST_CHANNEL,
 		Value:    id,
 	}
 
-	Srv.Store.Preference().Save(&model.Preferences{preference})
+	teamPref := model.Preference{
+		UserId:   c.Session.UserId,
+		Category: model.PREFERENCE_CATEGORY_LAST,
+		Name:     model.PREFERENCE_NAME_LAST_TEAM,
+		Value:    c.TeamId,
+	}
+
+	Srv.Store.Preference().Save(&model.Preferences{teamPref, chanPref})
 
 	message := model.NewWebSocketEvent(model.WEBSOCKET_EVENT_CHANNEL_VIEWED, c.TeamId, "", c.Session.UserId, nil)
 	message.Add("channel_id", id)
@@ -901,14 +908,21 @@ func updateLastViewedAt(c *Context, w http.ResponseWriter, r *http.Request) {
 		go clearPushNotification(c.Session.UserId, id)
 	}
 
-	preference := model.Preference{
+	chanPref := model.Preference{
 		UserId:   c.Session.UserId,
-		Category: model.PREFERENCE_CATEGORY_LAST,
+		Category: c.TeamId,
 		Name:     model.PREFERENCE_NAME_LAST_CHANNEL,
 		Value:    id,
 	}
 
-	Srv.Store.Preference().Save(&model.Preferences{preference})
+	teamPref := model.Preference{
+		UserId:   c.Session.UserId,
+		Category: model.PREFERENCE_CATEGORY_LAST,
+		Name:     model.PREFERENCE_NAME_LAST_TEAM,
+		Value:    c.TeamId,
+	}
+
+	Srv.Store.Preference().Save(&model.Preferences{teamPref, chanPref})
 
 	message := model.NewWebSocketEvent(model.WEBSOCKET_EVENT_CHANNEL_VIEWED, c.TeamId, "", c.Session.UserId, nil)
 	message.Add("channel_id", id)