reformat custom fields table. will return to this topic later

sql/decks.sql

@@ -1,9 +1,9 @@
 create table decks
 (
-    id       INTEGER
+    id       integer
         primary key autoincrement,
-    name     TEXT not null,
-    forward  TEXT not null,
-    backward TEXT not null,
-    filter   TEXT not null
+    name     text not null,
+    forward  text not null,
+    backward text not null,
+    filter   text not null
 );