Make file upload boxes clickable

[elsaperelli]

Pull requests into Cypress require the following. Submitter and reviewer should ✅ when done. For items that are not-applicable, note it's not-applicable ("N/A") and ✅.

These changes were added to make the file upload boxes themselves clickable again, not just the "Select Files" button.

Submitter:

• This pull request describes why these changes were made.
• Internal ticket for this PR:
• Internal ticket links to this PR
• Code diff has been done and been reviewed
• Tests are included and test edge cases
• Tests have been run locally and pass

Reviewer 1:

Name:

• Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• The tests appropriately test the new code, including edge cases
• You have tried to break the code

Reviewer 2:

Name:

• Code is maintainable and reusable, reuses existing code and infrastructure where appropriate, and accomplishes the task’s purpose
• The tests appropriately test the new code, including edge cases
• You have tried to break the code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.93%. Comparing base (587fa1f) to head (36b93d7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2051   +/-   ##
=======================================
  Coverage   91.93%   91.93%           
=======================================
  Files         159      159           
  Lines        7328     7328           
=======================================
  Hits         6737     6737           
  Misses        591      591           

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