fix a bug with the next_name function

looks like i used the previous_name logic for element of the vector i
used which is wrong.

Cargo.toml

@@ -8,7 +8,7 @@ edition = "2021"
 rust-version = "1.70"
 
 [profile.dev]
-lto = "thin"
+lto = false
 [profile.release]
 lto = "thin"
 

src/links.rs

@@ -33,7 +33,7 @@ pub fn previous_name(source_url: &String, names: &Vec<Site>) -> Option<String> {
 
 pub fn next_name(source_url: &String, names: &Vec<Site>) -> Option<String> {
 	match names.iter().position(|r| &r.url == source_url) {
-		Some(index) if index == names.len() - 1 => match &names[names.len() - 1].name {
+		Some(index) if index == names.len() - 1 => match &names[0].name {
 			Some(name) => Some(name.clone()),
 			None => next_url(source_url, names),
 		},