chore: eslint formatting and improve scripts

[KiwiKilian]

Description

• ESLint
  • Is now applied to TS and JS and therefore also Prettier is applied to more files
  • Config separated into .eslintrc.js and scripts/.eslintrc.js
• Improved some version constraints (we still don't have globally aligned versions of react-native etc...)
• I've streamlined the scripts section of the package.json

To easily see the actual changes, have a look at the individual commits. The two style commits apply a lot of changes.

Should I create a .git-blame-ignore-revs? It would allow to hide my commit with the auto-fixes from blame.

Also, once again, does this need a changelog entry? It shouldn't contain any user facing changes.

[tyrauber]

@KiwiKilian, Let's go ahead and add a .git-blame-ignore-revs? file. We should probably have one anyway.

[KiwiKilian]

@tyrauber I've added the .git-blame-ignore-revs.

[KiwiKilian]

For the .git-blame-ignore-revs to work I guess you must NOT squash this when merging?

[KiwiKilian]

@tyrauber I've noticed that tsc linting didn't work for the examples. I've added a tsconfig.json and aligned the others.

[github-actions]

🎉 This PR is included in version 10.0.0-beta.1 🎉

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

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