fix(deps): update dependency @edx/frontend-platform to v8.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@edx/frontend-platform	8.3.7 -> 8.4.0

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Release Notes

openedx/frontend-platform (@​edx/frontend-platform)

v8.4.0

Compare Source

Features

• allow customization of external URLs (#​809) (8c88998)

v8.3.9

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Bug Fixes

• treat @​openedx/frontend-build as an optional peerDep to avoid direct dep in consuming MFEs (#​790) (79d211a)

v8.3.8

Compare Source

Bug Fixes

• support not setting default in variant when using PARAGON_THEME_URLS (#​810) (93bee06)

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.17%. Comparing base (7ebdf1b) to head (b5a90e6).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #775   +/-   ##
=======================================
  Coverage   93.17%   93.17%           
=======================================
  Files         161      161           
  Lines        3414     3414           
  Branches      925      916    -9     
=======================================
  Hits         3181     3181           
- Misses        215      216    +1     
+ Partials       18       17    -1     

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