Investigate DuetDS date picker for accessibility compliance

[timwright12]

https://github.com/duetds/date-picker

[devinle]

• Opens on Enter keypress
• Allows selecting of months with keys
• Prevents window scroll when using arrow keys
• Closes on select

[samikeijonen]

Noting that in the repo there are some issues opened what comes to accessibility.

[devinle]

For use on a client site, see here: https://www.salesforce.com/news/media-library/