Better better react

[connorshea]

We've :recycle: the old :book: form in favor of a :new:, :sparkles: version using :chart_with_upwards_trend: React.js code that actually works.

:tada: We did it! :tada:

[connorshea]

Changes:

• Adds "Add to bookshelves" to story page
• Better story creation/editing form
• Bookshelves aren't broken anymore