Issue #3018073 by tim.plunkett, kostyashupenko, mark_fullmer, johndevman, JacobSanford: Stop Using Title Case When Not Appropriate in Layout Builder UI

Issue #3042089 by bnjmnm: Update Layout Builder functional javascript tests now that local tasks are not required by the UI

Issue #2968110 by tedbow, tim.plunkett, Kristen Pol, bkosborne, andrewmacpherson: Layout Builder's ConfigureBlockFormBase forms do not display validation errors on submit