Adding new port 2010 for frontend-app-learning due to codespace port collision on 2000 port

[papphelix]

JIRA: : https://2u-internal.atlassian.net/browse/AU-2523

Description: Codespaces devstack has a collision with Learning MFE for port 2000

Dependencies: Connected PR: edx/devstack#150

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (master@dbe917f). Learn more about missing BASE report.
Report is 680 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master       #4   +/-   ##
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  Coverage          ?   90.45%           
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  Files             ?      344           
  Lines             ?     5802           
  Branches          ?     1398           
=========================================
  Hits              ?     5248           
  Misses            ?      535           
  Partials          ?       19           

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[nsprenkle]

Note: this can actually be handled locally by creating the .env.private file below. Recommend closing and replacing with README documentation on how to fix this:

BASE_URL='http://localhost:2010'
PORT=2010