fix: add unsplash to connect src csp

Author: peterpeterparker

studio/src/index.html

@@ -13,7 +13,7 @@
     style-src 'self' 'unsafe-inline' https://www.gstatic.com https://fonts.googleapis.com;
     font-src 'self' https://fonts.googleapis.com https://fonts.gstatic.com;
     script-src 'self' blob: <@SW_LOADER@> 'sha256-vay/aAFxtYsaISRoBsVDHCbAzow9u6P2gHHTewRPaJY=' 'sha256-Q4WsoEk996jr5AUtYVXE8AMljYZgUVD3cxqC2YHsvyQ=' https://www.gstatic.com https://apis.google.com https://unpkg.com https://cdnjs.cloudflare.com https://cdn.jsdelivr.net;
-    connect-src 'self' <@API_URLS@> https://deckdeckgo.com/ https://app.deckdeckgo.com/ http://deckdeckgo-studio-beta.web.app/ http://deckdeckgo-studio-staging.web.app/ wss://api.deckdeckgo.com/ https://firebasestorage.googleapis.com/v0/b/deckdeckgo-studio-prod.appspot.com/ https://firebasestorage.googleapis.com/v0/b/deckdeckgo-studio-beta.appspot.com/ https://firebasestorage.googleapis.com/v0/b/deckdeckgo-studio-staging.appspot.com/ https://us-central1-deckdeckgo-studio-staging.cloudfunctions.net/ https://us-central1-deckdeckgo-studio-beta.cloudfunctions.net/ https://us-central1-deckdeckgo-studio-prod.cloudfunctions.net/ https://www.googleapis.com https://securetoken.googleapis.com https://firestore.googleapis.com ws://localhost:3333/ https://raw.githubusercontent.com/PrismJS/ https://raw.githubusercontent.com/deckgo/ https://api.tenor.com/ https://media.tenor.com/ https://formspree.io/xjvaebzk;
+    connect-src 'self' <@API_URLS@> https://deckdeckgo.com/ https://app.deckdeckgo.com/ http://deckdeckgo-studio-beta.web.app/ http://deckdeckgo-studio-staging.web.app/ wss://api.deckdeckgo.com/ https://firebasestorage.googleapis.com/v0/b/deckdeckgo-studio-prod.appspot.com/ https://firebasestorage.googleapis.com/v0/b/deckdeckgo-studio-beta.appspot.com/ https://firebasestorage.googleapis.com/v0/b/deckdeckgo-studio-staging.appspot.com/ https://us-central1-deckdeckgo-studio-staging.cloudfunctions.net/ https://us-central1-deckdeckgo-studio-beta.cloudfunctions.net/ https://us-central1-deckdeckgo-studio-prod.cloudfunctions.net/ https://www.googleapis.com https://securetoken.googleapis.com https://firestore.googleapis.com ws://localhost:3333/ https://raw.githubusercontent.com/PrismJS/ https://raw.githubusercontent.com/deckgo/ https://api.tenor.com/ https://media.tenor.com/ https://images.unsplash.com/ https://formspree.io/xjvaebzk;
     frame-src https: http://localhost:3333/~dev-server"
     />