fix: redirect agent uploads to library instead of builder

- Change upload redirect from /build?flowID=${response.id} to /library
- Keeps users in library context after uploading agents
- Fixes issue where agent uploads were pushing to builder instead of library

Fixes #10290

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`;
     } catch (error) {
       form.setError("root", {
         message: `Could not create agent: ${error}`,