[feature] add onLoad to SvgUri and fix typings for LocalSvg

[harveyconnor]

Summary

• Added a simple onLoad prop to the SvgUri
  • Allows users to show a loading state in their implementation whilst fetching the svg from the server.
• Added typings for LocalSvg class in the index.d.ts
  • Resolves issues when trying to import LocalSvg via TypeScript

Test Plan

Demonstrate the code is solid. Example: The exact commands you ran and their output, screenshots / videos if the pull request changes UI.

What's required for testing (prerequisites)?

Nothing, everything should work as is.

What are the steps to reproduce (after prerequisites)?

Import the LocalSvg using TypeScript or apply a onLoad attribute prop to the SvgUri.

Compatibility

OS	Implemented
iOS	✅
Android	✅

Checklist

• I have tested this on a device and a simulator
• I added documentation in README.md
• I updated the typed files (typescript)
• I added a test for the API in the __tests__ folder

[huming2207]

lgtm

[dannyifang]

lgtm

[harveyconnor]

Can we get this merged please? @msand

[huming2207]

Can we get this merged please? @msand

gg

[harveyconnor]

can we get this merged?

[nickmcmillan]

Still no merge? Seems like it's good to go.

[harveyconnor]

dead repo

[ayu-webmaster]

@magicismight

[lucascorrea97]

Can we please merge this??

[harveyconnor]

repo is dead so create your own or patch-package

[WoLewicki]

@harveyconnor could you rebase to the newest develop branch, remove the changes not concerning this PR, and add a test example to TestsExample project where we could test this change? It would greatly shorten the time the maintainers would need to spend in order to get this merged. Thank you in advance 🙏

[harveyconnor]

@harveyconnor could you rebase to the newest develop branch, remove the changes not concerning this PR, and add a test example to TestsExample project where we could test this change? It would greatly shorten the time the maintainers would need to spend in order to get this merged. Thank you in advance 🙏

I made this PR a very long time ago...

[WoLewicki]

Yeah, I see 😅 Will you be able to do that or should someone make a new one with those changes?

[harveyconnor]

I currently don't have time to do that unfortunately.

[WoLewicki]

Since #1817 has been merged, I will close this PR. Thanks for your contribution!