refactor(types): enable exactOptionalPropertyTypes

[dai-shi]

https://devblogs.microsoft.com/typescript/announcing-typescript-4-4/#exact-optional-property-types

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[github-actions]

Size Change: +441 B (+1%)

Total Size: 40.5 kB

Filename	Size	Change
dist/esm/urql.js	1.44 kB	+3 B (0%)
dist/esm/utils.js	4.35 kB	+86 B (+2%)
dist/esm/xstate.js	1.13 kB	+185 B (+20%)	🚨
dist/index.js	5.05 kB	+3 B (0%)
dist/urql.js	1.49 kB	+6 B (0%)
dist/utils.js	5.22 kB	+10 B (0%)
dist/xstate.js	1.19 kB	+148 B (+14%)	⚠️

ℹ️ View Unchanged

Filename	Size
dist/babel/plugin-debug-label.js	794 B
dist/babel/plugin-react-refresh.js	947 B
dist/babel/preset.js	1.21 kB
dist/devtools.js	1.73 kB
dist/esm/babel/plugin-debug-label.js	622 B
dist/esm/babel/plugin-react-refresh.js	763 B
dist/esm/babel/preset.js	1.01 kB
dist/esm/devtools.js	1.57 kB
dist/esm/immer.js	592 B
dist/esm/index.js	4.2 kB
dist/esm/optics.js	640 B
dist/esm/query.js	1.25 kB
dist/esm/redux.js	251 B
dist/esm/valtio.js	526 B
dist/esm/zustand.js	284 B
dist/immer.js	729 B
dist/optics.js	935 B
dist/query.js	1.36 kB
dist/redux.js	314 B
dist/valtio.js	586 B
dist/zustand.js	344 B

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[dai-shi]

@devanshj Curious if you know how to resolve the type error. Seems like it's coming from the xstate types.

[devanshj]

Yep xstate does not have --exactOptionalPropertyTypes enabled in their codebase, hence they can emit these less strict types. You can solve this by turning on --skipLibCheck in this repo or sending a PR to xstate to fix these types. The fix would probably be rather trivial just removing | undefined in these three places (onDone, exec and target)

[dai-shi]

Merging this. We will remove the patch when the new xstate package is released.