Function mergeControlBarLabels

mergeControlBarLabels(userLabels?: Partial<ControlBarLabels>): ControlBarLabels
Merges user-provided labels with defaults.
Parameters
- OptionaluserLabels: Partial<ControlBarLabels>
  Partial labels to merge with defaults
Returns ControlBarLabels
Complete labels object with user overrides applied
Example
```
const labels = mergeLabels({ mute: 'Silenciar' });
// Result: all default labels with 'mute' overridden
```
- Defined in react-ui/src/control-bar/defaults.ts:426