[xychart/annotation] Fix LineSubject types and strokeWidth

[Janpot]

🐛 Bug Fix

It was impossible to set strokeWidth on LineSubjects because the property was never passed through. I also augmented the types with the svg line properties because I was getting type errors when trying to set strokeDasharray

[coveralls]

Pull Request Test Coverage Report for Build 475866565

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 61.189%

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Totals
Change from base Build 462020185:	0.01%
Covered Lines:	1728
Relevant Lines:	2690

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💛 - Coveralls

[williaster]

Thanks for the fix @Janpot. The strokeWidth fix definitely makes sense but I had one question about the type change.

[williaster]

can you send a link that reproduced the TS error you are seeing? It works okay for me in the /annotation codesandbox

For other packages/components we have preferred to set the native SVG props on the component as a union with its own exported prop types, rather than on the exported prop types themselves to keep them separate and simplify re-use of the export where relevant.

[Janpot]

I actually saw it on AnnotationLineSubject.

[Janpot]

can be reproduced in the xychart codesandbox https://codesandbox.io/s/github/airbnb/visx/tree/master/packages/visx-demo/src/sandboxes/visx-xychart?file=/Example.tsx:7459-7501

[Janpot]

@williaster Update the PR to update AnnotationLineSubject instead

[williaster]

Awesome, thanks @Janpot ! LGTM. Will get this out in 1.4.0 hopefully later today.