Twenty Twenty-One: Fix typography settings for the Quote block.
Follow-up to [49216], [49478], [49574], [49633], [49800].
Props poena, jyolsna, deepakvijayan, audrasjb, whaze, ironprogrammer, suascat_wp, sannevndrmeulen, zunaid321, oglekler, sabernhardt, mukesh27, ugyensupport, devmuhib, priyanshii5, nicolefurlan, hellofromTonya, huzaifaalmesbah, shailu25, vivekawsm, imranhasanraaz, karmatosed.
Fixes #55991.
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