mcmaniac: fix regex #2

schema: make mcmaniac items case-insensitive

files/schema.sql

@@ -10,7 +10,7 @@ create table if not exists quotes (
 
 create table if not exists mcmaniacs (
     id    serial  primary key,
-    item  text    not null,
+    item  citext  not null,
     unique (item)
 );