1- Searching: The website allows users to search for food names, see the different results and view
              the nutritional information for each item without the need of registration but they
              won't be able to add the food to their daily dairy or count their calories.

2- Registration: The website has forms for creating an account and logging in which it gives the users
                 the searching functionality as well as allowing them to add food into their diary
                 and calculate their calories.

3- Dashboard: Each user has their own dashboard where they are able to view the food items that they
              have added to each meal and the amount of calories for the day and for each meal.

1- users: The first table in the database which contains the user information that include: user_id,
          username, email, password_hash.

2- food_diary: this table conatins all the food items that where saved by different users for their
               dashboard and that includes: diary_id, user_id, food_id, food_name, serving_size
               (the measuring unit, whether gram,kilogram,ounce,etc.), no_of_servings, calories,
               category(whether breakfast, lunch, dinner or snacks) and date_added.