feat(cli): add remove

added "remove" and added check to prevent duplicate profiles

src/main.rs

@@ -41,6 +41,11 @@ fn main() {
         }
         Commands::Add(args) => {
             let mut profiles = config::get_profile_list().expect("unable to get list of profiles");
+            let existing_profile = profiles.iter().position(|p| p.name == args.profile_name);
+            if existing_profile.is_some() {
+                println!("profile already exists");
+                return;
+            }
             profiles.push(Profile {
                 name: args.profile_name,
                 username: args.name,
@@ -49,5 +54,15 @@ fn main() {
             config::write_profile_list(profiles).expect("unable to write profile file");
             println!("profile added")
         }
+        Commands::Remove(args) => {
+            let mut profiles = config::get_profile_list().expect("unable to get list of profiles");
+            let index = profiles
+                .iter()
+                .position(|p| p.name == args.profile_name)
+                .expect("unable to find profile");
+            profiles.remove(index);
+            config::write_profile_list(profiles).expect("unable to write profile file");
+            println!("profile removed")
+        }
     }
 }