Add legal search to global search autosuggest

[patphongs]

Summary

• Resolves #6350

• Adds legal search to global search autosuggest

• Also adds small fix to admin fines link in legal search results

Required reviewers

1 front end 1 UX

Impacted areas of the application

General components of the application that this PR will affect:

• Global site autosuggest
• Legal search results page

Screenshots

Global search with search legal resources option

Fix admin fines link

How to test

• checkout this branch
• npm run build
• ./manage.py runserver
• Try to use the global search box on any page.
  • Check the bottom of the list to see if the "search legal resources" option is there.
  • Click on the "search legal resources" option and make sure that the query is passed to the legal search results page.
• Test the admin fines link on legal search results page: http://localhost:8000/data/legal/search/?search_type=all&search=test