Create text index on all fields in database

[jvdzwaan]

Full text search in MongoDB requires a text index. To create one that searches all fields use command:
db.recipies.createIndex({ "$**": "text" }, { name: "TextIndex" }, {language: "none"})

[robintw]

Unnecessary for TinyDB (though there could be potential performance issues later on - but that's a separate issue).