0.2.0-next.29 — backport the sideEffects fix to canary

Backports the 0.3.1 fix to the next channel: "sideEffects": ["./dist/react.js"], so bundlers stop deleting import "bool-sdk/react" from production builds.

Apps pinned to next need this. Apps on ^0.3.0 should take 0.3.1 instead. No code changes.