Merge pull request meshtastic#469 from danditomaso/feat/add-react-scan-debugging

feat: add react scan debugging

Author: danditomaso

README.md

@@ -75,6 +75,42 @@ If you encounter any issues with nightly builds, please report them in our [issu
 ## Development & Building
 You'll need to download the package manager used with this repo. You can install it by visiting [Bun.sh](https://bun.sh/) and following the installation instructions. 
 
+### Debugging 
+
+#### Debugging with React Scan
+Meshtastic Web Client has included the library [React Scan](https://github.com/aidenybai/react-scan) to help you identify and resolve render performance issues during development.
+
+React's comparison-by-reference approach to props makes it easy to inadvertently cause unnecessary re-renders, especially with:
+
+- Inline function callbacks (`onClick={() => handleClick()}`)
+- Object literals (`style={{ color: "purple" }}`)
+- Array literals (`items={[1, 2, 3]}`)
+
+These are recreated on every render, causing child components to re-render even when nothing has actually changed.
+
+Unlike React DevTools, React Scan specifically focuses on performance optimization by:
+
+- Clearly distinguishing between necessary and unnecessary renders
+- Providing render counts for components
+- Highlighting slow-rendering components
+- Offering a dedicated performance debugging experience
+
+#### Usage
+When experiencing slow renders, run:
+
+```bash
+bun run dev:scan
+```
+
+This will allow you to discover the following about your components and pages:
+
+- Components with excessive re-renders
+- Performance bottlenecks in the render tree
+- Expensive hook operations
+- Props that change reference on every render
+
+Use these insights to apply targeted optimizations like `React.memo()`, `useCallback()`, or `useMemo()` where they'll have the most impact.
+
 ### Building and Packaging
 
 Build the project: