fix(desktop): suppress react-refresh lint warning for useTheme hook

Standard pattern for context providers exporting both Provider and hook.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/desktop/src/renderer/src/components/theme-provider.tsx

@@ -82,6 +82,7 @@ export function ThemeProvider({
   )
 }
 
+// eslint-disable-next-line react-refresh/only-export-components
 export const useTheme = () => {
   const context = useContext(ThemeProviderContext)
   if (context === undefined)