Fixed type issue

.gitignore

@@ -163,4 +163,5 @@ cython_debug/
 storage/
 
 # Custom
-ingredients.json
+ingredients.json
+checklist.md

src/FileHandler.py

@@ -37,7 +37,7 @@ def combine_ingredients(meals: dict) -> dict:
     for meal, ingredients in meals.items():
         for ingredient, detail in ingredients.items():
             if ingredient in combined_ingredients:
-                combined_ingredients[ingredient]['quantity'] += detail['quantity']
+                combined_ingredients[ingredient]['quantity'] = str(float(combined_ingredients[ingredient]['quantity']) + float(detail['quantity']))
             else:
                 combined_ingredients[ingredient] = detail
     return combined_ingredients