Merge #266

266: Update rollup-plugin-node-resolve to the latest version 🚀 r=ForsakenHarmony a=greenkeeper[bot]


## The dependency [rollup-plugin-node-resolve](https://github.com/rollup/rollup-plugin-node-resolve) was updated from `3.4.0` to `4.0.0`.
This version is **not covered** by your **current version range**.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

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[Find out more about this release](https://github.com/rollup/rollup-plugin-node-resolve).

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  <summary>FAQ and help</summary>

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Co-authored-by: greenkeeper[bot] <greenkeeper[bot]@users.noreply.github.com>
Co-authored-by: Leah <me@hrmny.sh>

package.json

@@ -64,7 +64,7 @@
     "rollup-plugin-es3": "^1.1.0",
     "rollup-plugin-flow": "^1.1.1",
     "rollup-plugin-json": "^3.1.0",
-    "rollup-plugin-node-resolve": "^3.3.0",
+    "rollup-plugin-node-resolve": "^4.0.0",
     "rollup-plugin-postcss": "^1.6.1",
     "rollup-plugin-preserve-shebang": "^0.1.6",
     "rollup-plugin-sizes": "^0.4.2",