Modernize Releeph project create controller

Summary:
Ref T3092.

• Check for a duplicate key error;
• do less single loading and use Query classes;
• use responsive UI elements;
• add crumbs.

Test Plan: Created a new project, and hit error cases.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T3092

Differential Revision: https://secure.phabricator.com/D6629