fix clippy suggestions

src/app/entry.rs

@@ -33,7 +33,7 @@ impl Entry {
             || !toPort.parse::<i32>().is_ok_and(|a| a > 1 && a < 65535)
         {
             Err(EntryCreation::PortValidationError)
-        } else if !ip.is_match(&fromIP.trim()) || !ip.is_match(&toIP.trim()) {
+        } else if !ip.is_match(fromIP.trim()) || !ip.is_match(toIP.trim()) {
             Err(EntryCreation::IPValidationError)
         } else {
             Ok(Entry {

src/app/mod.rs

@@ -96,7 +96,7 @@ impl AppState {
             ))
         }
         outputString.push_str("\nwait");
-        std::fs::write("./forward.sh", outputString);
+        let _ = std::fs::write("./forward.sh", outputString);
     }
 
     pub fn save(&self) {

src/ui/mod.rs

@@ -43,7 +43,7 @@ pub fn ui(frame: &mut Frame, app: &AppState) {
     let mut currentItems = Vec::<ListItem>::new();
     for (i, e) in app.entries.iter().enumerate() {
         currentItems.push(ListItem::new(Line::from(Span::styled(
-            format!("{}. {}", i, e),
+            format!("{i}. {e}"),
             Style::default().fg(Color::Yellow),
         ))));
     }