Fix typescript error coming from package when installed as thrid party

[Reeywhaar]

Without such change I get errors coming from the package in my main project, even with skipLibCheck and node_modules in excludes in tsconfig.json. Seems that typescript, when it resolves types, takes first *.ts or *d.ts value in exports field. And so when it performs typecheck it follows with raw source instead of declarations.

My PR makes ts happy while codegen is still working.

Errors example:

[12:12:59 AM] Starting compilation in watch mode...

node_modules/react-native-navigation/src/adapters/TouchablePreview.tsx:2:28 - error TS7016: Could not find a declaration file for module 'prop-types'. '/Users/reeywhaar/Code/kidsout/app/node_modules/prop-types/index.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/prop-types` if it exists or add a new declaration (.d.ts) file containing `declare module 'prop-types';`

2 import * as PropTypes from 'prop-types';
                             ~~~~~~~~~~~~

node_modules/react-native-navigation/src/commands/OptionsCrawler.ts:15:34 - error TS2307: Cannot find module 'src/adapters/UniqueIdProvider' or its corresponding type declarations.

15 import { UniqueIdProvider } from 'src/adapters/UniqueIdProvider';
                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/react-native-navigation/src/components/ComponentWrapper.tsx:3:26 - error TS7016: Could not find a declaration file for module 'react-lifecycles-compat'. '/Users/reeywhaar/Code/kidsout/app/node_modules/react-lifecycles-compat/react-lifecycles-compat.cjs.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/react-lifecycles-compat` if it exists or add a new declaration (.d.ts) file containing `declare module 'react-lifecycles-compat';`

3 import { polyfill } from 'react-lifecycles-compat';
                           ~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/react-native-navigation/src/components/Modal.tsx:3:56 - error TS2307: Cannot find module 'src/interfaces/Options' or its corresponding type declarations.

3 import { AnimationOptions, ViewAnimationOptions } from 'src/interfaces/Options';
                                                         ~~~~~~~~~~~~~~~~~~~~~~~~

[12:13:14 AM] Found 4 errors. Watching for file changes.

"react-native-navigation": "8.7.3",
"typescript": "5.9.2",

[Reeywhaar]

Yep, types should go first. From the docs: 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.