Move JS file one level up

No need for a directory with one file
Add Persian translation
Fix login URL not saving
Show redirect description in list, if present

Note that it will be sorted by URL
Hide a redirect title behind a toggle

Keeps it simpler if you have no title, and title is always shown if you do.
Clean out old CSS rules
Limits on referrer and user agent strings
Clear 'add redirect' form after something is added
Fix saving of redirect by login, referrer, and user agent
Create a group if none exist

This should fix the problem where if you delete the last group you get an error on the main redirect page and then cannot create any more groups
Include latest changes
Version bump