fix(deps): remove filesize dependency

[MaxFrank13]

Removes filesize dependency. It's not used by anything in the repository. It doesn't appear to have ever been used. It was included in the initial commit to this repository. with no imports or usages.

#762 will be need to be closed if this is merged.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.54%. Comparing base (62099a5) to head (3b42dbd).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #767   +/-   ##
=======================================
  Coverage   97.54%   97.54%           
=======================================
  Files         148      148           
  Lines        1302     1302           
  Branches      225      224    -1     
=======================================
  Hits         1270     1270           
  Misses         31       31           
  Partials        1        1           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.