style(types): re-enable skipLibCheck in tsconfig

It's not possible to untangle node and react-native types unfortunately,
they clash. It is a known issue and apparently intractable, and
new typescript projects have skipLibCheck on so we acquiesce

Related #4306

Author: mikehardy

tsconfig.json

@@ -14,7 +14,7 @@
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
     "moduleResolution": "node",
-    "skipLibCheck": false,
+    "skipLibCheck": true,
     "experimentalDecorators": true,
     "emitDecoratorMetadata": true,
     "esModuleInterop": true,