Bugfix: PrismJS loading improvements & error handling

[jongpie]

Fixed #963 by making a few changes to the LWC loggerCodeViewer, used to display code snippets using PrismJS

• Added error handling to help surface issues with loading Prism static resources, and added logic to still display code content when loading Prism fails for some reason
• Created a new node script to auto-retrieve & auto-minify PrismJS files (including plugins, languages, and themes) to streamline the update process
• Switched to using minified versions of Prism JS & CSS files to avoid a crazy issue within the platform where comments containing the text import can cause the Prism JS file to not load/execute successfully (╯‵□′)╯︵┻━┻
• Finally fixed a long-standing issue where calling Prism.highlightAll() twice was previously needed
• Updated folder structure for static resources to include a dedicated Prism directory, as well as a themes subdirectory
• Expanded tests for LWC logEntryMetadataViewer to better cover the current functionality

Screenshots

• When 1 or more of the Prism static resources can't be loaded or executed, loggerCodeViewer will now show the code snippet without Prism formatting/highlighting (previously, a lightning-spinner just endlessly displayed). Corresponding error messages are also printed in the browser's console

  

• With the changes to use a minified version of Prism, it now successfully loads again (visually, this looks the same as before these recent issues started happening with Prism)

  

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.76%. Comparing base (62ceb99) to head (1854e82).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #988      +/-   ##
==========================================
+ Coverage   93.35%   93.76%   +0.40%     
==========================================
  Files          58       58              
  Lines        6306     6335      +29     
  Branches      200      204       +4     
==========================================
+ Hits         5887     5940      +53     
+ Misses        413      393      -20     
+ Partials        6        2       -4     

Flag	Coverage Δ
Apex	93.09% <ø> (ø)
LWC	96.27% <100.00%> (+1.91%)	⬆️

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[jongpie]

This has been released in v4.18.3