Fix extension readme image

apps/vscode/extension/README.md

 
 [tldraw](https://tldraw.com) is a free drawing and diagramming tool with a hand-drawn style and convenient features such as smart arrows, snapping, and sticky notes. With the tldraw extension for VS Code, your tldraw files can be version controlled alongside your code.
 
-<img alt="A recording of tldraw in VS Code" src="./assets/recording.gif" style="border-radius: 8px 8px 8px 8px; overflow: hidden; box-shadow: 0px 2px 24px rgba(0,0,0,.6);margin: 24px;"/>
+![A recording of tldraw in VS Code](./assets/recording.gif)
 
 > **Tip:** The files you create or edit here can also be opened in the tldraw [web app](https://tldraw.com).