update startup program URL path (#5701)

fixes: DASH-602

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## PR-Codex overview
This PR focuses on updating the routing paths in the `framer-rewrites.js` file for the dashboard application, specifically modifying the community and grants sections.

### Detailed summary
- Removed the route `"/community/ambassadors/startup-program"`.
- Added the route `"/community/startup-program"`.
- No other changes were made to the routing paths for community pages or grants.

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Author: jnsdls

apps/dashboard/framer-rewrites.js

@@ -35,7 +35,7 @@ module.exports = [
   "/privacy-policy",
   // -- community pages --
   "/community/ambassadors",
-  "/community/ambassadors/startup-program",
+  "/community/startup-program",
   // -- grants --
   "/grant/superchain",
 ];