Fix incorrect submodules+install new deps

- somehow the memex-common + storage submodules were set to branches on which we're doing the ongoing local PDF work
- installed new deps needed for firebase backend submodule updates
- new commit on memex-common fixing all but one failing test here

package.json

@@ -43,6 +43,7 @@
     },
     "dependencies": {
         "@josephg/resolvable": "^1.0.0",
+        "@sentry/node": "^6.14.3",
         "@styled-icons/feather": "^10.0.0",
         "@styled-icons/styled-icon": "^10.0.0",
         "@types/socket.io-client": "^1.4.32",
@@ -71,6 +72,8 @@
         "events": "^3.1.0",
         "fathom-web": "^2.1.0",
         "firebase": "^8.10.0",
+        "firebase-admin": "^10.0.0",
+        "firebase-functions": "^3.16.0",
         "firebaseui": "^4.2.0",
         "history": "^3.2.1",
         "immutability-helper": "^3.0.1",
@@ -85,7 +88,7 @@
         "object-path": "^0.11.4",
         "openpgp": "^4.6.2",
         "page-metadata-parser": "^1.1.4",
-        "pdfjs-dist": "WorldBrain/pdfjs-dist#fix\/unsafe-eval",
+        "pdfjs-dist": "WorldBrain/pdfjs-dist#fix/unsafe-eval",
         "polished": "^4.0.3",
         "postcss-modules-values": "^2.0.0",
         "promise-limit": "^2.5.0",