[System] iOS: Support OS browser interaction (Safari).

[asafkorem]

[owens-ben]

Would be nice to have this at some point. All we want to do for now is assert certain text appears.

[asafkorem]

@owens-ben for this you can also use snapshot testing

[asafkorem]

@owens-ben can you elaborate on your use-case? is that a Safari browser modal or a webkit webview (which is already supported)?