Add toggle button to buttongroup

Change-Id: I8b65001ca0e39dc4a04d19ee1e8a90fdb414b35f
diff --git a/package.json b/package.json
index 93e213f..cfbf19c 100755
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "Kalamar",
   "description": "Mojolicious-based Frontend for KorAP",
   "license": "BSD-2-Clause",
-  "version": "0.37.1",
+  "version": "0.37.2",
   "pluginVersion": "0.1",
   "repository": {
     "type": "git",