Upgrade Django and move "View details" link

• Move 'View Details' link to the left side of search results table (#61)
• Bump django from 2.2.10 to 2.2.13 (#62)

About page, search UX improvements, and activity search bug fix

Implement a few small features and bug fixes:

• Fix activity search function (#53)
• Add About page (#58)
• Improve search UX (#60)

Bug fixes

Fix a number of bugs and add small features following the initial launch, including:

• Fix login flow (#36)
• Always sort nulls last (#37)
• Add more sophisticated permissions (#16)
• Preserve document change history (#38)
• Fix sort by behavior for surveys (#46)
• Fix clobbering uploaded file names (#47)
• Add building_id column to flat drawings (#49)
• Support fuzzy search (#48)

Update production configs for initial deploy

Fix an error with production configs on the initial deployment.

Initial release

Initial release of the application ahead of public demo.