docs+feat: record backlog tip and move custom protocols to More

Document delivered IA and backlog four items; put custom plugins under
the wizard More group per design.

frontend/src/locales/en-US.json

@@ -365,7 +365,8 @@
     "installFailed": "Failed to install {protocol}",
     "groupEmployee": "Employee access",
     "groupSite": "Site interconnect",
-    "groupPenetrate": "Intranet penetration"
+    "groupPenetrate": "Intranet penetration",
+    "groupMore": "More"
   },
   "users": {
     "title": "Admins",