Fix patch vulnerability

What's Changed

• Refactor extension.ts by @MichaelCurrin in #67
• feat: Add save hook and refactor by @MichaelCurrin in #66
• build(deps): bump ansi-regex from 5.0.0 to 5.0.1 by @dependabot in #69
• other package upgrades
• doc changes

Full Changelog: v0.22.1...v0.22.2