Make Entire "Add a Message for the Restaurant" Button Clickable in the Cart

**Is your feature request related to a problem? Please describe.**
In the Enatega app (Cart section), the "Add a message for the restaurant" button should be fully clickable, not just the arrow icon. This enhancement would make the entire button area responsive, improving user experience and accessibility.

**Describe the solution you'd like**

1. Currently, only the arrow icon next to the "Add a message for the restaurant" option is clickable.
2. The entire button, including the text and arrow, should be clickable, allowing users to easily add a message for the restaurant when reviewing their cart.
3. This change would ensure a smoother, more intuitive interaction, reducing the chances of misclicking and improving the overall user experience.

Start in the Cart section and locate the “Add a message for the restaurant” control, then inspect the current click handler attached to the arrow. Done means the text, arrow, and surrounding button area all open the same message flow; verify the interaction manually in the cart.

Written by the indexing model from the issue text.