fix(cdnCache): make clear cache message generic

[smackfu]

Description

Changes the message from:

LOG: **************************************************************
LOG: CACHE INFORMATION
LOG: File size of .one-app-module-cache: 1.00 MB
LOG: To delete cache, please run
LOG:     rm  /home/node/.one-app/.one-app-module-cache
LOG: **************************************************************

to:

LOG: **************************************************************
LOG: CACHE INFORMATION
LOG: File size of .one-app-module-cache: 1.00 MB
LOG: To clear the cache, please delete this file:
LOG:     ~/.one-app/.one-app-module-cache
LOG: **************************************************************

This is trying to be generic enough to work across Mac and Windows and standalone and Docker, but it's a difficult problem.

Motivation and Context

Fixes #1244

Namely, running rm /home/node/.one-app/.one-app-module-cache will not delete the cache when running One App in Docker.

How Has This Been Tested?

Added unit test.

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (adding or updating documentation)
• Dependency update
• Security update

Checklist:

• My change requires a change to the documentation and I have updated the documentation accordingly.
• These changes should be applied to a maintenance branch.
• This change requires cross browser checks.
• Performance tests should be ran against the server prior to merging.
• This change impacts caching for client browsers.
• This change impacts HTTP headers.
• This change adds additional environment variable requirements for One App users.
• I have added the Apache 2.0 license header to any new files created.

What is the Impact to Developers Using One App?

More accurate instructions.