[6.0] select control modal doesn't work correctly on the web

[dannyhw]

Describe the bug

When using react native web the select control modal doesn't appear correctly. This is because react-native-web doesn't yet support the modal component.

To Reproduce
Steps to reproduce the behavior:

1. run storybook with react native web
2. use a story with a select control
3. go to addons panel and try to use the select control

Expected behavior
The select control should provide a normal input of type select when used on the web

Screenshots