remove duplicate rows from items table in recipes.db

[fitsum]

• noticed each entry in items is duplicated 8X ( original entry + 8 copies)
• removed 11977 duplicate entries in items table from recipes.db
• final row count for items table is 1487

[MariiaSizova]

Hey, Thanks for the amazing work! It's a little weird because I believe I removed the duplicates. The original dataset was bigger (18.000 entries) I will review the changes shortly and handle the pull request!