docs: avoid first-person wording in extension SDK docs

Author: codex

content/manuals/extensions/extensions-sdk/design/_index.md

@@ -20,7 +20,7 @@ To get started on your UI, follow the steps below.
 
 ### Recommended: React+MUI, using our theme
 
-Docker Desktop's UI is written in React and [MUI](https://mui.com/) (using Material UI specifically). This is the only officially supported framework for building extensions, and the one that our `init` command automatically configures for you. Using it brings significant benefits to authors:
+Docker Desktop's UI is written in React and [MUI](https://mui.com/) (using Material UI specifically). This is the only officially supported framework for building extensions, and the one that the `init` command automatically configures for you. Using it brings significant benefits to authors:
 
 - You can use our [Material UI theme](https://www.npmjs.com/package/@docker/docker-mui-theme) to automatically replicate Docker Desktop's look and feel.
 - In future, we'll release utilities and components specifically targeting this combination (e.g. custom MUI components, or React hooks for interacting with Docker).