Fix - Lint warnings and errors in client

Lint issues fixed:
1. Removed unused error variable in catch block
2. Changed 'ActionTypes' type to enum
3. Removed unnecessary interface extensions
4. Removed unused export component
5. Added the missing dependencies to useMemo
6. Fixed the inline function issue by changing it to useMemo

client/src/lib/useTheme.ts

@@ -43,7 +43,10 @@ const useTheme = (): [Theme, (mode: Theme) => void] => {
       document.documentElement.classList.toggle("dark", newTheme === "dark");
     }
   }, []);
-  return useMemo(() => [theme, setThemeWithSideEffect], [theme]);
+  return useMemo(
+    () => [theme, setThemeWithSideEffect],
+    [theme, setThemeWithSideEffect],
+  );
 };
 
 export default useTheme;