Issue #2905098 by tedbow, Jo Fitzgerald, Wim Leers, MerryHamster, Yogesh Pawar, rajeshwari10, larowlan, xjm: Change block entity form handler from 'off_canvas' to 'settings_tray'

Issue #2803375 by cilefen, tedbow, saurabh-chugh, Wim Leers: Rename Outside-in module to "Settings Tray" for real

Issue #2893978 by tedbow: Use newly supported 'options' in contextual links in Settings Tray contextual links

Issue #2862625 by Maxfire, tedbow, gaurav.kapoor, drpal, lauriii: Rename offcanvas to two words in code and comments.

Issue #2753941 by tedbow, tim.plunkett, tkoleary, SKAUGHT, drpal, effulgentsia, andrewmacpherson, webchick, xjm, Bojhan, Gábor Hojtsy, Wim Leers, catch, nod_: [Experimental] Create Outside In module MVP to provide block configuration in Off-Canvas tray and expand site edit mode