v2.0.0: Refactor, New Features, etc.

[jgarber623]

High-level:

• requires Node.js >= 18
• adds handling of null text content on an element, allowing for attribute-only insertions
• improved argument type checking
• adds a "publish" workflow to automate releases to npm and GitHub Packages

Sourced from the newly-added CHANGELOG.md:

Breaking Changes

• 80db616 breaking: Set minimum supported Node.js version

New Features

• 849b1af feat: Use Array.isArray()
• fbbf654 feat: Add support for null textContent

Bug Fixes

• 68d8081 fix: Properly check insertions argument type
• 3bd434d fix: S E M I C O L O N S

Documentation

• 5e1092b docs: Add CHANGELOG.md
• 6d418c3 docs: Document support for null textContent
• 76609b0 docs: Remove CONTRIBUTING.md
• c614555 docs: Use JSDoc syntax in banner comments

Chores

• 46460b8 chore: Add publish workflow
• 1085936 chore: Refactor ESLint config file
• 65f3092 chore: Rebuild lockfile
• a239fb8 chore: Add commit message prefixes to Dependabot config
• 625576c chore: Add another spec
• 5a701e7 chore: Re-point example and spec at built dist files
• 8e39544 chore: Add and configure concurrently and http-server
• 230245e chore: Remove dist files
• 5fcd652 chore: Add more insertion non-Object tests
• 426d9e3 chore: Add test against null textContent value
• 199f5e9 chore: Formatting and name changes and whatnot
• 86d5de5 chore: Point to src files in example and test
• 8800f79 chore: Specify files to be in published tarball
• 7bcbbba chore: Regenerate lockfile
• e90dce4 chore: Remove dist folder and gitignore it
• 51ef4a6 chore: Specify lts/hydrogen as development version
• f8a38d0 chore: Set current year in banner
• 3bb1f3b chore: Add publishConfig to package.json
• 1082b37 chore: Update dev dependencies
• 098a32d chore: Refactor CI workflow