External password generator button overlaps with "show password" button

[edmundito]

Current Behavior

With password generators (such as 1Password or LastPass,) the generator button injected into the page overlaps with our "show password" button.

Expected Behavior

The password generator button appears to the left of the show password button

Steps to Reproduce

1. Have a password manager extension installed in your browser
2. Navigate to a source settings page that has a password field

[octavia-squidington-iii]

cc @airbytehq/frontend