Fix unique constraint on compose charts table

compose/chart.cue

@@ -37,7 +37,7 @@ chart: {
 			"primary": { attribute: "id" }
 			"namespace": { attribute: "namespace_id" },
 			"unique_handle": {
-				fields: [{ attribute: "handle", modifiers: ["LOWERCASE"] }]
+				fields: [{ attribute: "handle", modifiers: ["LOWERCASE"] }, { attribute: "namespace_id" }]
 				predicate: "handle != '' AND deleted_at IS NULL"
 			}
 		}

compose/model/models.gen.go

@@ -216,6 +216,10 @@ var Chart = &dal.Model{
 					AttributeIdent: "Handle",
 					Modifiers:      []dal.IndexFieldModifier{"LOWERCASE"},
 				},
+
+				{
+					AttributeIdent: "NamespaceID",
+				},
 			},
 		},
 	},