Optimize history and fix nodes pollution + fix css + removes motion.framer (#28)

Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/28

src/Components/Editor/Editor.tsx

@@ -42,12 +42,23 @@ const Editor: React.FunctionComponent<IEditorProps> = (props) => {
       configuration: props.configuration
     };
 
+    const funcs = new Map<string, () => void>();
     for (const event of events) {
-      editorRef.current?.addEventListener(event.name, () => event.func(editorState));
+      const func = (): void => event.func(editorState);
+      editorRef.current?.addEventListener(event.name, func);
+      funcs.set(event.name, func);
     }
 
     return () => {
       window.removeEventListener('keyup', onKeyUp);
+
+      for (const event of events) {
+        const func = funcs.get(event.name);
+        if (func === undefined) {
+          continue;
+        }
+        editorRef.current?.removeEventListener(event.name, func);
+      }
     };
   });