updated package deps in 0.4.x branch so it doesn't pull theme versions that are too new

Conflicts:
	package.json

package.json

@@ -47,8 +47,8 @@
     "nodebb-plugin-mentions": "~0.4.0",
     "nodebb-plugin-markdown": "~0.4.1",
     "nodebb-widget-essentials": "~0.0.21",
-    "nodebb-theme-vanilla": "~0.0.20",
-    "nodebb-theme-lavender": "~0.0.26",
+    "nodebb-theme-vanilla": "<0.0.21",
+    "nodebb-theme-lavender": "<0.0.27",
     "nodebb-plugin-soundpack-default": "~0.1.1",
     "nodebb-plugin-dbsearch": "0.0.9"
   },