Consolidate locale data

[jonas-jonas]

We currently have two versions of the locale data:

1. in the legacy Ory Elements implementation: https://github.com/ory/elements/tree/main/src/locales
2. in the new @ory/elements-react package: https://github.com/ory/elements/tree/main/packages/elements-react/src/locales

This will cause confusion, and we should consolidate both into an @ory/elements-locales or @ory/locales package in this repository. This package does not need to be published to npm (or other registry), but it should be possible to bundle its content into our various npm packages, via tsup/esbuild/etc.