Default tasks should be tagged with appropriate default tags

[SabreCat]

Description

When a user first signs up, they have some sample tasks "Productive Work," "Eat Junk Food", etc., as well as a set of sample tags "Work," "Exercise," and so on. But the sample tasks don't have the sample tags applied to them, so if the user experimentally filters on one of the tags, everything disappears. It would make sense for "Productive Work" to be tagged "Work", "Eat Junk Food" to be tagged with "Health + Wellness", and "Take the Elevator / Stairs" to be tagged with "Exercise." (Dunno if any tags would be appropriate for "Join Habitica"...)

[librarianmage]

I can work on this!

[librarianmage]

This is what I'm planning to add:

• Productive Work -> Work, School, Chores
• Eat Junk Food -> Health + Wellness
• Take the Elevator Stairs -> Health + Wellness, Exercise

Does that make sense?