- adds a visually hidden text to give context to the lyrics
- the text is `Quote from Hello Dolly song, by Jerry Herman:`
- adds a `lang` HTML attribute (when the admin language is not English) to better support assistive technologies
- adds a `dir` HTML attribute to better support the LTR English lyrics with RTL languages
- CSS adjustments
Props audrasjb, SergeyBiryukov, danieltj, birgire, karmatosed, desrosj, afercia.
Fixes#43632.
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