feat: update deps, fix null errors, improve types

[vonovak]

this:

1) updates the deps 2) on Android, getCornerPoints() is marked as Nullable so I took a safer approach like it's done with getBoundingBox() 3) cornerPoints?: CornerPoints; is a more specific type, because there are always going to be 4 items in the array

If you merge this and release, please be so kind and push the version bump commit and the git tag (npm version minor produces those) in the repo so that they are in the git history, thank you! :)

[a7medev]

Hi @vonovak! Thanks a lot for your contribution. I have a concern though, I think Google ML Kit for Text Recognition on iOS is at version 4 currently, do you have a reason not to pick the latest?

[vonovak]

Hello! I picked the version from here: https://developers.google.com/ml-kit/vision/text-recognition/v2/ios

If there's v4, I haven't seen it? (Do you see it?) Thanks 👍

[a7medev]

@vonovak Yeah, I checked that page and couldn't see it as well, but looks like v4 is out (some mentions of it are in #24). Let's upgrade to the latest then to keep the package up-to-date. 🙏🏼

[vonovak]

@a7medev done! :)

[cidenton]

I just came here to ask about updating to the MLKit pods - I had updated my podspec locally to the v4.0, and they perform much better than the v2.6. Excited to see this merged & released!

[vonovak]

Thank you! 👍