Fix the tags feature

The `deleted` column does not exist for the `tags` table, so I removed the `WHERE` clause. This change fixes the following error:
```
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'deleted' in 'where clause'
```

I also moved everything into `features/tags/*` to mirror the other features.

I tried to reverse-engineer the markup for the view based on the selectors in `tags.js`. Seemed like a reasonable start, but I'm sure it's different internally at etsy.