refactor: standardize background color to #121212

- Replaced inconsistent gray-900 and #171717 background colors with unified #121212 across all pages
- Removed unused imports from multiple component files
- Cleaned up trailing spaces in className attributes

src/pages/agents/AgentBento.tsx

@@ -94,12 +94,12 @@ export function AgentBento() {
             >
               {!card.noBorder && (
                 <div
-                  className={`absolute inset-0 rounded-md border border-gray-800 bg-[#111212] ${card.rounded}`}
+                  className={`absolute inset-0 rounded-md border border-gray-800 bg-[#111212] `}
                 />
               )}
 
               <div
-                className={`relative flex lg:h-90 flex-col overflow-hidden rounded-[calc(var(--radius-lg)+1px)] ${card.innerRounded}`}
+                className={`relative flex lg:h-90 flex-col overflow-hidden rounded-[calc(var(--radius-lg)+1px)] `}
               >
                 {/* ✅ VIDEO instead of animation */}
                 {card.video ? (
@@ -145,7 +145,7 @@ export function AgentBento() {
 
               {!card.noBorder && (
                 <div
-                  className={`pointer-events-none absolute inset-0 rounded-lg shadow-sm outline outline-black/5 ${card.rounded}`}
+                  className={`pointer-events-none absolute inset-0 rounded-lg shadow-sm outline outline-black/5 `}
                 />
               )}
             </div>