Issue #2656278 by alexpott, miteshmap, droplet, walangitan, empesan, ejb503, manmohandream, vaidehi bapat, gadaniels72, swentel, jamesdesq, luca_cracco, malaimo29001, Wim Leers, nileema.jadhav: Convert "Limit allowed HTML tags" input field to a textarea

Revert "Issue #2656278 by miteshmap, walangitan, empesan, ejb503, manmohandream, vaidehi bapat, gadaniels72, luca_cracco, swentel, malaimo29001, nileema.jadhav, sidharthap: Convert "Limit allowed HTML tags" input field to a textarea"

This reverts commit 53766025.

Issue #2656278 by miteshmap, walangitan, empesan, ejb503, manmohandream, vaidehi bapat, gadaniels72, luca_cracco, swentel, malaimo29001, nileema.jadhav, sidharthap: Convert "Limit allowed HTML tags" input field to a textarea

Issue #2395853 by LewisNyman, Manjit.Singh, nlisgo, pjbaert, Branislav Bujisic, pguillard, gavin.hughes, onelittlebecca, alisonjo2786, camoa, DickJohnson, manmohandream, davidhernandez, kgoel: Split system.module.css and system.theme.css files into SMACSS style components