translate zen mode

app/controllers/Dasher.scala

@@ -32,7 +32,8 @@ object Dasher extends LilaController {
         I18nKeys.boardGeometry,
         I18nKeys.boardTheme,
         I18nKeys.boardSize,
-        I18nKeys.pieceSet
+        I18nKeys.pieceSet,
+        I18nKeys.zenMode
       ), lila.i18n.I18nDb.Site, ctx.lang
   ) ++ lila.i18n.JsDump.keysToObject(
       // the language settings should never be in a totally foreign language

modules/i18n/src/main/I18nKeys.scala

@@ -479,6 +479,7 @@ val `error.email_acceptable` = new Translated("error.email_acceptable", Site)
 val `error.email_unique` = new Translated("error.email_unique", Site)
 val `error.email_different` = new Translated("error.email_different", Site)
 val `blindfoldChess` = new Translated("blindfoldChess", Site)
+val `zenMode` = new Translated("zenMode", Site)
 val `moveConfirmation` = new Translated("moveConfirmation", Site)
 val `inCorrespondenceGames` = new Translated("inCorrespondenceGames", Site)
 val `ifRatingIsPlusMinusX` = new Translated("ifRatingIsPlusMinusX", Site)

translation/source/site.xml

@@ -568,6 +568,7 @@ a computer analysis, a game chat and a sharable URL.</string>
   <string name="error.email_unique">This email address is already taken</string>
   <string name="error.email_different">This is already your email address</string>
   <string name="blindfoldChess">Blindfold chess (invisible pieces)</string>
+  <string name="zenMode">Zen mode</string>
   <string name="moveConfirmation">Move confirmation</string>
   <string name="inCorrespondenceGames">Correspondence games</string>
   <string name="ifRatingIsPlusMinusX">If rating is ± %s</string>