feat(esbuild): Switch to using esbuild and clean up repo

[brdlyptrs]

Fixes #340

• Updates repo structure to follow more modern structure, similar to @hcaptcah/loader
• Switches from babel building to esbuild
• Optimizes file bundling and making overall configuration easier to maintain long term
• Demo page uses dist bundle similar to how users would install this package via npm
• Implemented swc and bumped testing packages to latest versions
  • Note: required rewriting tests as many were using deprecated apis
• Added PNPM to leverage workspaces which allowed the demo page to simulate real world installations

To Do:

• Finish tests
• Add type building and exports

New Dist Folder