fix(core): avoid shaking when renaming doc in title bar (#6847)

- before
    ![CleanShot 2024-05-09 at 14.42.45.gif](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/LakojjjzZNf6ogjOVwKE/5c7b6beb-d24f-49b8-a2c2-f3ab07f4972a.gif)

- after
    ![CleanShot 2024-05-09 at 14.43.57.gif](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/LakojjjzZNf6ogjOVwKE/325b68b5-a904-425a-b2c4-5f914237b497.gif)

packages/frontend/component/src/ui/editable/inline-edit.tsx

@@ -179,8 +179,8 @@ export const InlineEdit = ({
   } as CSSProperties;
   const inputInheritsStyles = {
     ...inputWrapperInheritsStyles,
-    padding: undefined,
-    margin: undefined,
+    padding: 0,
+    margin: 0,
   };
 
   return (