ui: translate the RAM operations hint

The data-l10n key for 'RAM operations perform atomic GlobalPlatform
commands over SCP80. Card keys are taken from the saved preset.' was
missing from LANG_RU, so the hint stayed English. SW cache v127 -> v128.

frontend/sw.js

@@ -1,4 +1,4 @@
-const CACHE = 'otaman-v127';
+const CACHE = 'otaman-v128';
 const URLS = [
   'index.html',
   'help.html',