[plotly.js] Fix TS2430 error with exactOptionalPropertyTypes

[andersk]

An automated change #54346 that was intended to fix errors with exactOptionalPropertyTypes actually introduced an error with exactOptionalPropertyTypes here. Fix it.

$ echo 'import "plotly.js"' > test.ts
$ tsc --strict --exactOptionalPropertyTypes test.ts
node_modules/@types/plotly.js/index.d.ts:120:18 - error TS2430: Interface 'PlotRelayoutEvent' incorrectly extends interface 'Partial<Layout>'.
  Types of property '"xaxis.range[0]"' are incompatible.
    Type 'number | undefined' is not assignable to type 'Datum'.
      Type 'undefined' is not assignable to type 'Datum'.

120 export interface PlotRelayoutEvent extends Partial<Layout> {
                     ~~~~~~~~~~~~~~~~~

Found 1 error in node_modules/@types/plotly.js/index.d.ts:120

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[typescript-bot]

@andersk Thank you for submitting this PR!

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• plotly.js — on npm, on unpkg

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---

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[typescript-bot]

Hey @andersk,

😒 Your PR doesn't modify any tests, so it's hard to know what's being fixed, and your changes might regress in the future. Please consider adding tests to cover the change you're making. Including tests allows this PR to be merged by yourself and the owners of this module.

This can potentially save days of time for you!

[typescript-bot]

🔔 @chrisgervang @martinduparc @frederikaalund @taoqf @Dadstart @szechyjs @soorajpudiyadath @jonfreedman @meganrm @milesjos @SkipperCool @mtadams007 @marnett-git @peterblazejewicz @brammitch @blizzardjessica @olegshilov @PabloGracia @jvgogh @jpabdou — please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.

[typescript-bot]

Re-ping @chrisgervang, @martinduparc, @frederikaalund, @taoqf, @Dadstart, @szechyjs, @soorajpudiyadath, @jonfreedman, @meganrm, @milesjos, @SkipperCool, @mtadams007, @marnett-git, @peterblazejewicz, @brammitch, @blizzardjessica, @olegshilov, @PabloGracia, @jvgogh, @jpabdou:

This PR has been out for over a week, yet I haven't seen any reviews.

Could someone please give it some attention? Thanks!