fix: Order of the type exports in package.json

[samwillis]

With a recent dependancy bump, builds had started reporting this warning (and similar):

The condition "types" here will never be used as it comes after both "import" and "require"

The fix is to place the type exports above the import and require exports.

[github-actions[bot]]

Built bundles:

• Postgres WASM: https://github.com/electric-sql/pglite/actions/runs/11335298629/artifacts/2055191168
• Interim build files: https://github.com/electric-sql/pglite/actions/runs/11335298629/artifacts/2055191219
• PGlite: https://github.com/electric-sql/pglite/actions/runs/11335298629/artifacts/2055208837
• Demos: https://github.com/electric-sql/pglite/actions/runs/11335298629/artifacts/2055220452

[github-actions[bot]]

🚀 Deployed on https://670d8faa1fbea4761cbc141c--pglite.netlify.app