Update react monorepo to v16.7.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
react	dependencies	minor	16.6.3 -> 16.7.0	homepage, source
react-dom	dependencies	minor	16.6.3 -> 16.7.0	homepage, source

---

Release Notes

facebook/react

v16.7.0

Compare Source

React DOM

• Fix performance of React.lazy for large numbers of lazily-loaded components. (@​acdlite in #​14429)
• Clear fields on unmount to avoid memory leaks. (@​trueadm in #​14276)
• Fix bug with SSR and context when mixing react-dom/server@16.6 and react@<16.6. (@​gaearon in #​14291)
• Fix a performance regression in profiling mode. (@​bvaughn in #​14383)

Scheduler (Experimental)

• Post to MessageChannel instead of window. (@​acdlite in #​14234)
• Reduce serialization overhead. (@​developit in #​14249)
• Fix fallback to setTimeout in testing environments. (@​bvaughn in #​14358)
• Add methods for debugging. (@​mrkev in #​14053)

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot. View repository job log here.