USWDS-Sandbox: Zombie defense component updates

[mahoneycm]

Summary

Implements changes documented in this component testing planning mural board.

This branch also updates to the latest uswds-sandbox repo

Note
To minimize changed files, we should pull the latest changes into the target branch

Related Issue

Resolves #99

Preview link

Zombie Defense Training →

Changes

• Implements state combobox
  • In the miro page, this was originally proposed to be dependant on the in-person course option being selected
  • Dan mentioned not relying on a logic decision to display any form elements, but to have them all be readily available.
  • Instead, I just added the state combobox to the default form page
• Implements file upload component
• Implements step indicator component
• Updates input mask pattern
  • New pattern: AAA-###
  • Old pattern: A#A-#A#
• Installs latest uswds 3.6.0 package
  • Corrects input mask hover style issue

Exclusions

• Combobox keyboard navigations were improved with USWDS - Combobox: Keyboard selection compliance update. Resolves #5161 uswds#5160 and included with the USWDS update.
• Input mask improvements in #5227 are still in progress
• Character Count hint text was not adjusted as discussed with @jaclinec
  • Dan mentioned not wanting to move the 25 characters allowed from below the text input
  • Adding a separate label would be redundant and cause screen readers to announce the character limit twice
  • Most screen readers will be able to provide the information to users, this is only a potential difficulty with screen magnifier users

[mahoneycm]

Updates after discussion w/ @jaclinec

• Input mask has disabled hover state
  • Current USWDS bug. Will be resolved with 3.6.0
• Updated alphanumeric pattern to AAA-###
• Looked into character count allowing input past limit
  • This is an expected pattern and how the component natively acts
• Implemented step indicator

[mahoneycm]

Update 8.25

Installed latest USWDS package which resolved the input mask hover style issue

[mejiaj]

Future enhancement

Consider moving this to an include to make it easier to update.