feat(helpers): add timeframe_to_one_minutes function to convert timef…

…rames

- Introduced a new function `timeframe_to_one_minutes` in helpers.py that utilizes the existing utility function for converting timeframes to a one-minute equivalent.
- This addition enhances the functionality of the helpers module by providing a direct method for timeframe conversion.

jesse/helpers.py

@@ -1134,3 +1134,8 @@ def gzip_compress(data):
     json_data = json.dumps(data).encode('utf-8')
     # Compress the JSON string
     return gzip.compress(json_data)
+
+
+def timeframe_to_one_minutes(timeframe: str) -> int:
+    from jesse.utils import timeframe_to_one_minutes
+    return timeframe_to_one_minutes(timeframe)