fix(build): remove npm bundling from build script and align documented jwt default state

readme.md

@@ -347,7 +347,7 @@ const state = domtools.domToolsStatePart;
 // Get current state
 const currentState = state.getState();
 console.log(currentState.virtualViewport); // 'native'
-console.log(currentState.jwt); // null
+console.log(currentState.jwt); // ''
 
 // Update state
 state.setState({