Issue title: Confirm password on register entry page
 Issue body: The register entry have only email/user and password fields, if the user have mistypes password, the user have to go through "forgot password" -> "check email" -> "change password" circle to fix silly  mistake which can be easily avoid by providing a second password field to confirm password

That or let user switch to visible password field (very helpful for mobile users) to type password.

 Comments: 
 Comment 0: This is the exactly issue that I'm going to report (or maybe I haven't know how to add the "confirm password" field to the sign-up form yet !)

 Comment 1: +1

 Comment 2: +1

 Comment 3: Check this one: Added password confirmation support on signup and password reset pages. #338 
{'source': 'GithubIssues', 'repo_name_with_owner': 'Differential/accounts-entry', 'issue_id': 43610573, 'repo_stars': 305.0}