[Production] New page / git repo fixes and improvements

This is an "Epic" style issue where I list some of the issues reported by our production team after the new page (/production/new, #70, !43 (merged)) was launched.

Production page

• Allow edadmin to draft publication despite authors not formally approving a Proofs object. "Accepted" status in a stream is enough.
• Add button to clear search filters
• Change search layout
• Allow filtering by "None" officer/supervisor
• Fix collapsable triangle on summary tags not appearing
• Change bulk assignment view to display the selected streams and their count
• Investigate emails not being sent when using bulk assignment
• Investigate ?body=... on mailto: <a> link not working on Vivaldi
• Add stream number and link to old page (for the time being...)
• Fix broken status update response on old production page

Proofs repos

• Change protected branch privilleges to allow Developers to push
• Fix repo creation with accented author names
• Add author affiliation superscripts back to formatted author names
• Make name of repos a static field instead of a property