Allow to prefill name and description fields of a new Passphrase

Summary:
Allow to prefill name and description fields of a new Passphrase

Closes T15142

Test Plan:
I've visited this URL in my local test installation:

/passphrase/edit/?type=password&username=user&name=super&description=mario

And I was able to see the Name and Description fields prefilled,
just like the username.

I also tried to put the query string on an already-existing element
and it was working as expected, so, without any prefilled value from
the query string.

Reviewers: O1 Blessed Committers, avivey

Reviewed By: O1 Blessed Committers, avivey

Subscribers: avivey, speck, tobiaswiese, Matthew, Cigaryno

Maniphest Tasks: T15142

Differential Revision: https://we.phorge.it/D25065