`word-break: normal !important;` was added to Twenty Twenty in [46701], but the change missed getting propagated to all uses of the screen-reader-text class at that time.
Add `word-break` reset to `.screen-reader-text` to ensure screen readers won't read text as individual letters in hidden text.
Props peterwilsoncc, manhphucofficial, palak678, sabernhardt, mukesh27, joedolson.
Fixes#64375.
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