St Croix and Saint Croix should be the same county

[nbdavies]

In the county column, it's called St. Croix.

The circuit court office name is inconsistent:

• Saint Croix County Circuit Court, Branch x (6 elections)
• St Croix County Circuit Court, Branch x (4 elections)

For the county's DA, the office name is also a mix:

• St. Croix County District Attorney (4 elections)
• Saint Croix County District Attorney (3 elections)

For consumers of this data that might slice it by office name, it'd be nice to coalesce these spellings so that they don't have to.

St. Croix would be the best name to standardize to, so that it matches the county column. There are 13 files total that have the other two variants (Saint Croix/St Croix) that should show up as modified when a fix is in place.

[davipo]

We fixed this with commit b000d3f