chore: remove trailing whitespace, add CR at end of file

app-proto/src/main.rs

@@ -30,7 +30,7 @@ impl AppState {
             selection: create_signal(BTreeSet::default()),
         }
     }
-    
+
     // in single-selection mode, select the given element. in multiple-selection
     // mode, toggle whether the given element is selected
     fn select(&self, element: &Rc<dyn Element>, multi: bool) {
@@ -53,10 +53,10 @@ fn main() {
     // set the console error panic hook
     #[cfg(feature = "console_error_panic_hook")]
     console_error_panic_hook::set_once();
-    
+
     sycamore::render(|| {
         provide_context(AppState::new());
-        
+
         view! {
             div(id = "sidebar") {
                 AddRemove {}
@@ -66,4 +66,4 @@ fn main() {
             Display {}
         }
     });
-}
+}