MM-10254 Add plugin APIs for getting/updating user statuses (#9101)

* Add plugin APIs for getting/updating user statuses

* Add and update tests

* Updates per feedback

api4/user_test.go

@@ -1501,7 +1501,7 @@ func TestGetRecentlyActiveUsersInTeam(t *testing.T) {
 	Client := th.Client
 	teamId := th.BasicTeam.Id
 
-	th.App.SetStatusOnline(th.BasicUser.Id, "", true)
+	th.App.SetStatusOnline(th.BasicUser.Id, true)
 
 	rusers, resp := Client.GetRecentlyActiveUsersInTeam(teamId, 0, 60, "")
 	CheckNoError(t, resp)