add datepicker to newexpensepage, give a proper name

in newexpensepage cs file, change the date from
datetime.now to take date from the date picker

add date picker to expensespage,
add button below the date picker
modify the expensedatabase code to have
a new method
public Task<List<Expense>> GetExpenseForDateAsync(DateTime date)
{
	return database.Table<Expense>()
					.Where(i => i.Date == date).ToListAsync();
}
call the above method when the new button is clicked
only expenses selected for the date should be displayed