Issue #3231781 by longwave, mondrake, Feuerwagen, larowlan, TR, nlisgo, xxAlHixx, DuaelFr, GoZ, benjy, no_angel, Mac_Weber: [D9.3 beta - w/c Nov 8, 2021] Remove remaining uses of t() in tests

Issue #2008982 by xxAlHixx, adamcowboy, hussainweb, c4rl: Replace theme() with drupal_render() in config module.