Function mergeLocalVideoTileStyles

mergeLocalVideoTileStyles(
userStyles?: LocalVideoTileStylesInput,
): LocalVideoTileStyles
Merges user-provided styles with defaults for LocalVideoTile. Nested pulseAnimation object is deep-merged.
Parameters
- OptionaluserStyles: LocalVideoTileStylesInput
  Partial styles to merge with defaults
Returns LocalVideoTileStyles
Complete styles object with user overrides applied
Example
```
const styles = mergeLocalVideoTileStyles({
  borderRadius: 12,
  pulseAnimation: { duration: '2s' } // easing uses default
});
```
- Defined in react-ui/src/video-tile/defaults.ts:654