Fix for new UI of Safari 12

[jordn]

The UI elements have moved around in Safari 12 from Safari 11, resulting in this not working, with
errors along the lines of:
"System Events got an error: Can’t set value of missing value
to "\X.com\" from value of missing value"

This updates the script for traversing the new UI elements.

[adussaq]

I agree with this fix, although there is still an issue, the passwords when exported from Chrome have four columns. So lines 31-33 need to be incremented to 2,3,4 from 1,2,3.

[noahbjohnson]

I agree with this fix, although there is still an issue, the passwords when exported from Chrome have four columns. So lines 31-33 need to be incremented to 2,3,4 from 1,2,3.

Not sure this is a valid issue with this code. The readme states the expected csv format, it's up to the user to get the password file in the correct format prior to importing.

[LeftDelirious]

Fixed the problem. Thanks!

[ianmacartney]

@adussaq I addressed your concern in #9 which also updates the readme and dummy file to address @noahbjohnson's concern. since the common case is importing chrome's csv, I don't see a reason to ask people to do unnecessary work. the minority with the other format can do the work, or we can adjust the script to accept either depending on how many values there are