Added OR IGNORE to an INSERT statement in schema.

pkg/mindflow/database/sqlite/queries/schema.sql

@@ -5,7 +5,7 @@ CREATE TABLE IF NOT EXISTS `category` (
     PRIMARY KEY (`category_id`),
     UNIQUE (`name`) );
 
-INSERT INTO `category`
+INSERT OR IGNORE INTO `category`
 VALUES
     (1, 'Update'),
     (2, 'Diary');