User-specified password displaying during install

[Ribbontree]

I appreciate the improvement that users are prompted to choose their own password. However I think there has been an oversight with this change.
Historically it has been essential to display the password onscreen, because the user did not specify it.

I believe it is now dangerous to continue displaying a user's own specified password. It is obscurred with an <input type="password" /> field, so one would not expect it to be visible on a subsequent page.
Many people use their passwords for several different sites; to display this password on screen, when it was originally obscured is likely to upset people who weren't expecting this behaviour.

Tested in nightly build downloaded approximately 21 hours ago.

[nacin]

Agree. This was pointed out in the original ticket, we just haven't gotten around to it yet.

I'll leave this open for now even though it can be handled in #10396 (the main ticket), it's important we get to this.

[TobiasBg]

If we decide to not show the password on the subsequent screen, we will have to add a "Type password again" field to the original screen, otherwise the user might accidentally make a typo and does not really know about.

[dd32]

(In [13592]) Do not display user specified password during install. Fixes #12479. See #10396 for feedback