P5-6410 - add default tab column to collections (#158)

migrations/000.272.sql

@@ -0,0 +1,6 @@
+-- P5-6410: add default product list tab column to collections.
+
+ALTER TABLE collections
+  ADD COLUMN default_product_list_tab TEXT
+  CHECK(default_product_list_tab IN ('wallpapers', 'canvas-prints', 'framed-prints', 'posters'))
+  DEFAULT 'wallpapers';