Merge tag 'v1.4.0' into develop

page: buy ducatus/lottery

- referral programm
- fix lottery text
- update language text on buy page
- redesign buy form
- redesign info block under buy form

page: admin/voucher

- new column freeze days
- creating freeze voucher
- fix styles and text

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ducatus-site",
-  "version": "1.3.13",
+  "version": "1.4.0",
   "scripts": {
     "ng": "ng",
     "start": "ng serve --proxy-config proxy.conf.json --host localducatus.mywish.io --port 4224 --disableHostCheck",