Use getter for number of coffee uses

[Josh Cook]

Currently, the plugin pulls down all of the uses information for the day and then returns the length of the list. It would be faster and easier to just query the number of uses for the day directly.

SwiftBar-Plugins/coffee-tracker.15m.py

Lines 121 to 134 in d8a9805

 def get_todays_uses() -> List[CoffeeUse]: 
     try: 
         response = requests.get( 
             api_url + f"uses/?n_last=20&since={get_today_formatted_datetime()}" 
         ) 
         return [CoffeeUse(key=k, **i) for k, i in response.json().items()] 
     except Exception as err: 
         print(f"error: {err}") 
         return [] 
  
  
 def get_number_of_cups_today() -> int: 
     cups: List[CoffeeUse] = get_todays_uses() 
     return len(cups)