Make the delete and backspace keys remove the currently selected entity

macrovision.js

@@ -653,6 +653,15 @@ document.addEventListener("DOMContentLoaded", () => {
         }
     });
 
+    document.addEventListener("keydown", e => {
+        console.log(e)
+        if (e.key == "Delete" || e.key == "Backspace") {
+            if (selected) {
+                removeEntity(selected);
+                selected = null;
+            }
+        }
+    })
     prepareEntities();
 });