Ownership Transfer

Write a function make_greeting that takes ownership of a String name and returns a new String with a greeting. Print the result in main.

Expected output:

Welcome, Ferris!

Hints:

• Function signature: fn make_greeting(name: String) -> String
• Use format!("Welcome, {}!", name) to build the new string
• The function takes ownership, so name moves in — that's OK since we return a new string