Adding "Contains" Condition in Filter_By

Roman struggled with incorrect matches in the `filter_by` field. Kishore Nallan explains it only works at the word level, not partial prefix, and suggested setting `drop_tokens_threshold` to 0 to prevent incorrect matches.

Gabe asked if `filter_by` in Typesense accepts OR arguments, which Jason confirmed. Gabe then suggested adding this clarification to the documents.

Roshan asked about the functionality of the 'contains' operator in Typesense filters. Kishore Nallan explained how to use the operator and suggested using a curl query for better insight into the issue. However, the thread ends without a resolution.