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)

model/preference.go

@@ -33,6 +33,7 @@ const (
 
 	PREFERENCE_CATEGORY_LAST     = "last"
 	PREFERENCE_NAME_LAST_CHANNEL = "channel"
+	PREFERENCE_NAME_LAST_TEAM    = "team"
 
 	PREFERENCE_CATEGORY_NOTIFICATIONS = "notifications"
 	PREFERENCE_NAME_EMAIL_INTERVAL    = "email_interval"