Fix a new clippy lint

src/tui/ui.rs

@@ -231,13 +231,13 @@ impl<'a> ArtistOverlay<'a> {
         let indent = format!("\n{item_indent}");
         let list = vec
             .iter()
-            .map(|(k, v)| format!("{k}: {}", Self::vec_to_string(v, list_indent)))
+            .map(|(k, v)| format!("{k}: {}", Self::slice_to_string(v, list_indent)))
             .collect::<Vec<String>>()
             .join(&indent);
         format!("{indent}{list}")
     }
 
-    fn vec_to_string<S: AsRef<str>>(vec: &Vec<S>, indent: &str) -> String {
+    fn slice_to_string<S: AsRef<str>>(vec: &[S], indent: &str) -> String {
         if vec.len() < 2 {
             vec.first()
                 .map(|item| item.as_ref())