feat: Expo scaffold + auth screens + core screens (#39-#46, #48)

babel.config.js

@@ -0,0 +1,9 @@
+module.exports = function (api) {
+  api.cache(true);
+  return {
+    presets: [
+      ['babel-preset-expo', { jsxImportSource: 'nativewind' }],
+      'nativewind/babel',
+    ],
+  };
+};