Extract findElementBy and ClickElementBy in steps into meaningful methods

We can see findElementBy and ClickElementBy are called directly in steps, it's better to give them meaningful names:

And /^I add the first book to Wish List$/ do
    getCurrentItemTitle
    clickElementBy("id","add-to-wishlist-button-submit")
end

And /^I add the first book to shopping cart from Wish List$/ do
    clickElementBy("class","w-button-inner")
    addToShoppingCartFromWishList
end
And /^I open my shopping cart$/ do
    clickElementBy("id","nav-cart")
end

So we can extract them into methods:

And /^I add the first book to Wish List$/ do
    getCurrentItemTitle
    addToWishList
end

And /^I add the first book to shopping cart from Wish List$/ do
    openWishList
    addToShoppingCartFromWishList
end
And /^I open my shopping cart$/ do
    openShoppingCart
end
def addToWishList
    clickElementBy("id","add-to-wishlist-button-submit")
end
def openWishList
    clickElementBy("class","w-button-inner")
end
def openShoppingCart
    clickElementBy("id","nav-cart")
end