build: use shared browserslist configuration

[Mashal-m]

Ticket:
Use shared @edx/browserslist-config

Removes custom browserslist configuration in favor of using a Shared Configuration

This change reduces the resultant asset bundle size.

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[coveralls]

Pull Request Test Coverage Report for Build 3489579138

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 54.95%

---

Totals
Change from base Build 3489041364:	0.0%
Covered Lines:	167
Relevant Lines:	307

---

💛 - Coveralls

[codecov]

Codecov Report

Base: 57.28% // Head: 57.28% // No change to project coverage 👍

Coverage data is based on head (3b166c9) compared to base (d2c8115).
Patch has no changes to coverable lines.

❗ Current head 3b166c9 differs from pull request most recent head 55d997f. Consider uploading reports for the commit 55d997f to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #63   +/-   ##
=======================================
  Coverage   57.28%   57.28%           
=======================================
  Files          26       26           
  Lines         398      398           
  Branches       66       66           
=======================================
  Hits          228      228           
  Misses        154      154           
  Partials       16       16           

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[natabene]

@schenedx Ready for your team whenever.

[schenedx]

@Mashal-m Why is this PR created? Why do we want to adopt using browser-list-config instead of what's already there? The description is empty and that would make it difficult for reviewer to understand the intent.

[Mashal-m]

@schenedx This change reduces the resultant asset bundle size.
I have added the description

[ashultz0]

@Mashal-m I had to make some updates to packages.json to get this deployable again and I have rebased your package.json changes on top of those, merging them in was very easy, and then rebuilt package locks

[ashultz0]

failing test is just a failure to upload to codecov which has been intermittently annoying me over the past couple of days, I'm going to merge and recheck on stage

[ashultz0]

deployed, looks OK