Add unique constraints to featuredAdventures and worldTravelCountryRegions tables, and insert data for Canada, Germany, and the US regions.

sql/ca.sql

@@ -0,0 +1,17 @@
+INSERT INTO "worldTravelCountryRegions" (name, country_code)
+VALUES
+  ('Alberta', 'ca'),
+  ('British Columbia', 'ca'),
+  ('Manitoba', 'ca'),
+  ('New Brunswick', 'ca'),
+  ('Newfoundland and Labrador', 'ca'),
+  ('Nova Scotia', 'ca'),
+  ('Ontario', 'ca'),
+  ('Prince Edward Island', 'ca'),
+  ('Quebec', 'ca'),
+  ('Saskatchewan', 'ca'),
+  ('Northwest Territories', 'ca'),
+  ('Nunavut', 'ca'),
+  ('Yukon', 'ca');
+
+ON CONFLICT (name) DO NOTHING;