Improve theme hook performance by removing unused dependency

Optimize useNovuTheme hook by removing the unused theme variable from the useMemo dependency array, preventing unnecessary recalculations.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 5191c2bb-cd42-429f-a7dc-1c028b81e199
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/7cdf4e95-3f41-4180-b8e3-8ef56d032c0e/5191c2bb-cd42-429f-a7dc-1c028b81e199/U85RZre

src/hooks/useNovuTheme.ts

@@ -1,9 +1,6 @@
-import { useTheme } from '@/components/theme/ThemeProvider';
 import { useMemo } from 'react';
 
 export function useNovuTheme() {
-  const { theme } = useTheme();
-  
   const appearance = useMemo(() => {
     return {
       variables: {
@@ -171,7 +168,7 @@ export function useNovuTheme() {
         },
       },
     } as const;
-  }, [theme]);
+  }, []);
   
   return appearance;
 }