Remove banner

[tellison]

Description of change

Remove the homepage banner.

Checklist

• npm test passes
• documentation is changed or added (if applicable)
• permission has been obtained to add new logo (if applicable)
• contribution guidelines followed here

[netlify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.43%. Comparing base (700702e) to head (fc3c174).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2864   +/-   ##
=======================================
  Coverage   99.43%   99.43%           
=======================================
  Files          89       89           
  Lines        6881     6881           
  Branches      605      605           
=======================================
  Hits         6842     6842           
  Misses         39       39           

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