AppManager: Add API endpoint to install dodo app

Refactors cue definitions.

Next steps:
* Needs some cleanup, namespace is hard coded ...
* Maybe merge with regular install API
* Support exposing ports across clusters

Change-Id: Ibfc3c3f742b61f2c5874012fe6c77b958eae81d9
diff --git a/core/installer/values-tmpl/memberships.cue b/core/installer/values-tmpl/memberships.cue
index 95a2b60..521c4d1 100644
--- a/core/installer/values-tmpl/memberships.cue
+++ b/core/installer/values-tmpl/memberships.cue
@@ -49,7 +49,7 @@
 		}
 	}
 
-	volumes: data: size: "1Gi"
+	volume: data: size: "1Gi"
 
 	helm: {
 		memberships: {
@@ -61,7 +61,7 @@
 					pullPolicy: images.memberships.pullPolicy
 				}
 				portName: _httpPortName
-				volumeClaimName: volumes.data.name
+				volumeClaimName: volume.data.name
 			}
 		}
 	}