fix warning at #2680

[icecream17]

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Description of the Change

componentWillRecieveProps is now deprecated, so this pr replaces it.

https://reactjs.org/docs/react-component.html#unsafe_componentwillreceiveprops says: "If you need to perform a side effect (for example, data fetching or an animation) in response to a change in props, use componentDidUpdate lifecycle instead."

componentDidUpdate is called after updating, rather than componentWillRecieveProps. If this (or some other subtle change) happens to break atom, then I'll just use UNSAFE_componentWillReceiveProps instead.

Warning text:

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Warning: componentWillReceiveProps has been renamed, and is not recommended for use. See https://fb.me/react-unsafe-component-lifecycles for details.

• Move data fetching code or side effects to componentDidUpdate.
• If you're updating state whenever props change, refactor your code to use memoization techniques or move it to static getDerivedStateFromProps. Learn more at: https://fb.me/react-derived-state
• Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. To rename all deprecated lifecycles to their new names, you can run npx react-codemod rename-unsafe-lifecycles in your project source folder.

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In this case, it's used for side effects (1st bullet point)

And this implies there will still be a warning when using UNSAFE_componentWillReceiveProps in strict-mode, so trying componentDidUpdate first.

Screenshot or Gif

N/A

Applicable Issues

Fixes Part of Fixes #2680

[icecream17]

The tests failed, but for external reasons

Also there's this:

[smashwilson]

The tests failed, but for external reasons

Yeah, our CI seems really unhealthy 😒 . It was always a bit rickety even when this was my major focus, but it looks like entropy has made it even worse since the last time I've done work here.

[codecov[bot]]

Codecov Report

Merging #2681 (8b1cfaf) into master (2053290) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2681   +/-   ##
=======================================
  Coverage   93.46%   93.46%           
=======================================
  Files         237      237           
  Lines       13213    13213           
  Branches     1900     1900           
=======================================
  Hits        12349    12349           
  Misses        864      864           

Impacted Files	Coverage Δ
lib/atom/commands.js	100.00% <100.00%> (ø)

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[icecream17]

That last commit was for the tests to run