v0.2.0-rc.3

What's Changed

• refactor(types): drop ambient globals; mirror runtime js/→fp/ direction by @ethantw in #2
• bench(textcontents): TreeWalker spike for ignoreAwareTextContent — ke… by @ethantw in #3
• Fix insert contextlessly by @ethantw in #4
• Reinforce tests, etc by @ethantw in #5

Full Changelog: v0.2.0-rc.2...v0.2.0-rc.3