ARIA labels needed in date select, datetime select

[Stephanie Leary]

In reviewing the core UI components, I found that date-select and datetime-select have form inputs without labels. We should review these and try to add visible labels where possible, but for now just adding aria-label attributes will solve the immediate accessibility problem.

Branch coming up.

[Stephanie Leary (stephanieleary)]

Here's a branch: https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/sleary/LP2043421-aria-labels-date-selects

To test:

1. Go to /staff/sandbox
2. Find the date input just under the green "Test Strings" button
3. Inspect the <input>. In the accessibility inspector (not the element inspector), look for the accessible name property. It should be "Enter date."
4. Search further down the page for "Your datetime is" and look at the <input> just above this line.
5. Inspect this <input>. Its accessible name should be "Enter date and time."

[Terran McCanna (tmccanna)]

Works for me!

Pushed to main, 3.12, 3.11, and 3.10