UI tab menu implementation & Refactoring

[nordic96]

• implemented Typee layout (initial night theme mode) - refer to 7a7a405
• refactored AddressBookParser to TypeeParser
• added tabMenus.json for adding menus.
• added JsonParser method readJsonFileIntoList to read array format.

for editing/adding menus in the tab panel, as of now, add a tab object in the tabMenus.json
ex)

[
  { "name" :  "Appointment" },
  { "name" :  "Typing Game" },
  { "name" :  "Calendar View" },
  { "name":  "Generate Report" }
]

[jun-ha0]

LGTM 👍

[brebeek]

LGTM

[uggi121]

LGTM! Can refactor/beautify a little bit after merge

[uggi121]

Looks good! Maybe rename boolean empty to isEmpty to emphasize that it's a boolean :) You can consider having another method isEmpty that checks the condition in line 32 to adhere to the SLAP principle

[nordic96]

Thanks for reminding me the SLAP again. Will update the parameter name to isEmpty instead. For the isEmpty() method, the super method force to set it empty and update the list cell object so I don't think it is necessary. Anyway, thanks for the review.

from Cell.java

     * @param item The new item for the cell.
     * @param empty whether or not this cell represents data from the list. If it
     *        is empty, then it does not represent any domain data, but is a cell
     *        being used to render an "empty" row.
     */
    protected void updateItem(T item, boolean empty) {
        setItem(item);
        setEmpty(empty);
        if (empty && isSelected()) {
            updateSelected(false);
        }
    }