Refactor date handling in grab_contest_names function for improved formatting

- Updated the date parsing in the grab_contest_names function to remove the explicit format specification, allowing for more flexible date handling.
- Reformatted the 'Date' column to ensure consistent output as '%Y-%m-%d', enhancing data presentation and usability.
- This change supports ongoing efforts to improve data processing and maintain data integrity within the application.

app.py

@@ -22,7 +22,8 @@ def grab_contest_names(db, sport):
     cursor = collection.find()
 
     curr_info = pd.DataFrame(list(cursor)).drop('_id', axis=1)
-    curr_info['Date'] = pd.to_datetime(curr_info['Date'], format='%Y-%m-%d')
+    curr_info['Date'] = pd.to_datetime(curr_info['Date'])
+    curr_info['Date'] = curr_info['Date'].dt.strftime('%Y-%m-%d')
     contest_names = curr_info['Contest Name']
     contest_id_map = dict(zip(curr_info['Contest Name'], curr_info['Contest ID']))
     contest_date_map = dict(zip(curr_info['Contest Name'], curr_info['Date']))