i18n: profile Check button -> 'Check card' / 'Проверить карту'

Renamed the i18n key/value and both help references (profile list and
Check description). SW cache v69 -> v70.

frontend/sw.js

@@ -1,4 +1,4 @@
-const CACHE = 'otaman-v69';
+const CACHE = 'otaman-v70';
 const URLS = [
   'index.html',
   'help.html',