date picker year aria labels reversed and year selection icons both have down arrow classes

[acomsto]

Description

• Fix issue where date picker aria labels are reversed, "Next Year" now corresponds to up, and "Previous Year" now corresponds with down
• Fix issue where both year selection icons had the same class name icon-triangle-down, these icons are now caret-up and caret-down
• Add caret-up icon to IconMap.tsx
• Fix styling to now account for caret icons instead of the arrow icons

References #1718

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How Has This Been Tested?

Ran all tests

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

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[ryan-henness-trimble]

@acomsto It's looking good to me. I will give @coliff and @msankaran0712 a chance to take a look

[coliff]

There seems to be more space between the caret-up and caret-down icons now

I think that change is very welcome. The icon tap-target was far too small before (12px x 12px) and now it is 16px x 16px.

[msankaran0712]

There seems to be more space between the caret-up and caret-down icons now

I think that change is very welcome. The icon tap-target was far too small before (12px x 12px) and now it is 16px x 16px.

@coliff My only concern was in Figma, the space is less

[msankaran0712]

we can remove this margin so that there enough space between the icons and no accessibility issue
cc @coliff