chore(version): update cs3d version and add iframe documentation (#3474)

platform/app/netlify.toml

@@ -43,3 +43,5 @@
     # COMMENT: For sharedArrayBuffer, see https://developer.chrome.com/blog/enabling-shared-array-buffer/
     Cross-Origin-Embedder-Policy = "require-corp"
     Cross-Origin-Opener-Policy =  "same-origin"
+    # set CORP to cross-origin for anyone who wants to use the viewer in an iframe
+    Cross-Origin-Resource-Policy = "cross-origin"