enable passthru app

bubble-server/src/main/resources/models/manifest-app-passthru.json

@@ -0,0 +1,4 @@
+[
+  "apps/passthru/bubbleApp_passthru",
+  "apps/passthru/bubbleApp_passthru_matchers"
+]

bubble-server/src/main/resources/models/manifest-defaults.json

@@ -4,5 +4,6 @@
   "manifest-app-analytics",
   "manifest-app-user-block",
   "manifest-app-bubble-block",
+  "manifest-app-passthru",
   "defaults/bubblePlan"
 ]