Set properties for v2.9.1 in public with mike 2.1.3

public/versions.json

@@ -3,8 +3,8 @@
     "version": "v4.2.0",
     "title": "v4.2.0",
     "aliases": [
-      "latestR4",
-      "latest"
+      "latest",
+      "latestR4"
     ]
   },
   {
@@ -61,7 +61,10 @@
   {
     "version": "v2.9.1",
     "title": "v2.9.1",
-    "aliases": []
+    "aliases": [],
+    "properties": {
+      "hidden": true
+    }
   },
   {
     "version": "v2.9.0",