* Add hidden skip to content for keyboard a11y
* update green.900 value
used for button background; increases contrast ratio
* adjusts light primary to green.700 for contrast
Improves contrast ratio when paired with yellow.50 and removes browser a11y warnings
* add aria-labels
* add lang to html element
* fix improperly ordered headers
We should not be using headers (h4/h5) for these aside navigations. Updated to remove browser warnings.
* add remaining aria-label
* add aria-label for mobile menu
Extracted the common style objects and props into variables or constants to avoid repeating the same code and make the code easier to read.
Instead of repeating the same _hover styles in multiple places, I created a hoverStyles object and used it in each Link component.
