Accessibility/Inputs: Update focus color to an accessible one.

[rymorgan]

Type: breaking|critical|major|minor
Minor

Describe the bug
Our current focus color doesn't meet accessibility guidelines and needs to be updated to a color that meets contrast guidelines.

To Reproduce
Click tab to get a focus ring.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

[machikoyasuda]

Just for documentation's sake, this is what our Catalyst Button focus states look like now:

This is what it looks like on some Reaction Admin MUI components:

[machikoyasuda]

For the Select, we chose dark blue for focus, the same color that shows up when you click on the select:

For Tabs, focus looks similar to the Button:

For Chip, it looks like this middle one:

The Deletable Chip is problematic b/c the Deletable Chip's X button does not have a focus state so it's impossible to close it with a keyboard key.