fix: move types to top in exports

[fisker]

The "types" condition should always come first in "exports"

https://www.typescriptlang.org/docs/handbook/release-notes/typescript-4-7.html#:~:text=The%20%22types%22%20condition%20should%20always%20come%20first%20in%20%22exports%22.

This condition should always be included first

https://nodejs.org/api/packages.html#:~:text=This%20condition%20should%20always%20be%20included%20first.

When bundle this package with esbuild, it also emits a warning

$ echo import "lines-and-columns" | npx esbuild --log-level=debug --bundle

● [DEBUG] The condition "types" here will never be used as it comes after both "import" and "require" [package.json]

    node_modules/lines-and-columns/package.json:25:4:
      25 │     "types": "./build/index.d.ts"
         ╵     ~~~~~~~

  The "import" condition comes earlier and will be used for all "import" statements:

    node_modules/lines-and-columns/package.json:23:4:
      23 │     "import": "./build/index.mjs",
         ╵     ~~~~~~~~

  The "require" condition comes earlier and will be used for all "require" calls:

    node_modules/lines-and-columns/package.json:24:4:
      24 │     "require": "./build/index.cjs",
         ╵     ~~~~~~~~~