Allow copy and paste of multiple items into the To-Do lists

[ngramste]

When using to-do lists for my shopping list, it is pretty common for me to reference an online recipe to add items to the list. I personally use Mealie for my personal cookbook and copying the list gives you a newline delimited list of elements. It would be awesome if I could paste my entire clipboard into the to-do list and have all the items listed separately. The current behavior is that the entire clipboard is entered into a single element on the to-do list, which isn't very helpful.

I have looked around online and sometimes items are delimited by two or more newlines. If this feature is added, I would suspect that the code could detect an attempt to add empty elements from the clipboard and ignore those

Example clipboard data:
1 tbsp butter
1 tbsp olive oil
1 diced onion
2 pounds lean ground lamb
1/3 cup flour
salt and pepper to taste
1 tsp paprika
1/8 tsp cinnamon
2 tsp minced fresh rosemary
3 cloves minced garlic
1 tbsp ketchup
2 1/2 cups water or broth (use more or less to adjust thickness as needed)
12 oz bag frozen peas and carrots, thawed, drained well
2 1/2 pound Yukon gold potatoes
1 tbsp butter
salt and pepper to taste
pinch of cayenne
1/4 cup cream cheese
1/4 pound Irish cheddar
1 egg yolk beaten with 2 tbsp milk

Example 2 clipboard data:
½ cup mayonnaise

2 tablespoons white sugar

1 ½ tablespoons lemon juice

1 tablespoon vinegar

½ teaspoon ground black pepper

¼ teaspoon salt