[Embed] Starter pack embed embed (#4935)

* update @atproto/api

* add starter pack embed

* update depreciated BskyAgent to AtpAgent

* unrelated, but avoid direct import of type

* nits

* rm commented out code

---------

Co-authored-by: Samuel Newman <10959775+mozzius@users.noreply.github.com>

bskyembed/package.json

@@ -9,7 +9,7 @@
     "lint": "eslint --cache --ext .js,.jsx,.ts,.tsx src"
   },
   "dependencies": {
-    "@atproto/api": "^0.12.2",
+    "@atproto/api": "0.13.1",
     "@preact/preset-vite": "^2.8.2",
     "@vitejs/plugin-legacy": "^5.3.2",
     "preact": "^10.4.8",