fix: redirect agent uploads to specific agent page instead of builder

- Changed redirect destination from `/build?flowID=${response.id}` to `/library/agents/${response.id}`
- Users now navigate directly to their uploaded agent's page in the library
- Removed unnecessary query parameter construction

Co-authored-by: Nicholas Tindle <ntindle@users.noreply.github.com>

autogpt_platform/frontend/src/components/library/library-upload-agent-dialog.tsx

@@ -82,8 +82,7 @@ export default function LibraryUploadAgentDialog(): React.ReactNode {
         description: "Agent uploaded successfully",
         variant: "default",
       });
-      const qID = "flowID";
-      window.location.href = `/build?${qID}=${response.id}`;
+      window.location.href = `/library/agents/${response.id}`;
     } catch (error) {
       form.setError("root", {
         message: `Could not create agent: ${error}`,