Don't use global app for api / api4 tests (#7528)

* don't use global app for api / api4 tests

* put sleep back. we're gonna have to do some goroutine wrangling

* fix oauth test config assumptions

* jobs package, i'm comin' for you next

* app test fix

* try increasing sleep a little

api/command_join_test.go

@@ -13,6 +13,8 @@ import (
 // also used to test /open (see command_open_test.go)
 func testJoinCommands(t *testing.T, alias string) {
 	th := Setup().InitBasic()
+	defer th.TearDown()
+
 	Client := th.BasicClient
 	team := th.BasicTeam
 	user2 := th.BasicUser2