Add space around = for Sycamore props

Also, add a trailing comma to a match arm in `outline.rs`.

app-proto/src/components/outline.rs

@@ -76,7 +76,7 @@ fn RegulatorInput(regulator: Rc<dyn Regulator>) -> View {
                 move |event: KeyboardEvent| {
                     match event.key().as_str() {
                         "Escape" => reset_value(),
-                        _ => ()
+                        _ => (),
                     }
                 }
             },