Old `konnectorOpenUri` mechanisme is removed in favor of cozy-intent
based one

Those mechanisms are used to tell parent react-native app that a
connector pane needs to be opened

`konnectorOpenUri` required the parent react-native app to inject a
token in the store's url so the store would know if executed in a
react-native context or not, and then intercept navigation URLs to
detect if a connector needs to be opened. This implementation was not
easy to understand

New implementation uses cozy-device-helper to detect if run from
CozyFlagship app and the uses cozy-intent messaging service to ask for
displaying a connector