Simplify Processing Arguments in Node.js CLI

[kruplm]

• Simplified ProcessArgs() by processing entries dynamically.
• Renamed files to follow camelCase across the project

[codecov]

Codecov Report

Merging #178 (60a8325) into main (4421d52) will increase coverage by 0.10%.
The diff coverage is 66.66%.

❗ Current head 60a8325 differs from pull request most recent head 16754c1. Consider uploading reports for the commit 16754c1 to get more accurate results

@@            Coverage Diff             @@
##             main     #178      +/-   ##
==========================================
+ Coverage   79.89%   79.99%   +0.10%     
==========================================
  Files          82       82              
  Lines        3198     3184      -14     
  Branches      139      135       -4     
==========================================
- Hits         2555     2547       -8     
+ Misses        643      637       -6     

Impacted Files	Coverage Δ
...c/shell/js/composeui-node-launcher/src/launcher.ts	62.50% <66.66%> (ø)

... and 1 file with indirect coverage changes