fix(use-theme): remove redundant applyTheme from toggleTheme

toggleTheme was calling applyTheme() inside the state updater AND
the useEffect was also applying on state change — double DOM write.
Now toggleTheme relies solely on the useEffect, matching setTheme
behavior.

packages/use-theme/src/use-theme.ts

@@ -80,10 +80,9 @@ export function useTheme(options?: UseThemeOptions): UseThemeReturn {
       if (typeof window !== 'undefined') {
         window.localStorage.setItem(storageKey, next);
       }
-      applyTheme(next, attribute);
       return next;
     });
-  }, [storageKey, attribute]);
+  }, [storageKey]);
 
   return { theme, setTheme, toggleTheme };
 }