fix(expo/tsconfig): Add dom lib to add window.fetch types.

types/expo/tsconfig.json

@@ -2,6 +2,7 @@
     "compilerOptions": {
         "module": "commonjs",
         "lib": [
+            "dom",
             "es6"
         ],
         "jsx": "react",
@@ -21,4 +22,4 @@
         "index.d.ts",
         "expo-tests.tsx"
     ]
-}
+}