update strings for ephemeral messages

deltachat-ios/en.lproj/Localizable.strings

@@ -656,3 +656,6 @@
 "a11y_voice_message_hint_ios" = "After recording double-tap to send. To discard the recording scrub left-right with two fingers.";
 "login_error_no_internet_connection" = "No internet connection, can\'t log in to your server.";
 "share_account_not_configured" = "Account is not configured.";
+"pref_ephemeral_messages" = "Self-destructing messages";
+"after_30_seconds" = "After 30 seconds";
+"after_1_minute" = "After 1 minute";

tools/untranslated.xml

@@ -8,4 +8,7 @@
     <string name="a11y_voice_message_hint_ios">After recording double-tap to send. To discard the recording scrub left-right with two fingers.</string>
     <string name="login_error_no_internet_connection">No internet connection, can\'t log in to your server.</string>
     <string name="share_account_not_configured">Account is not configured.</string>
+    <string name="pref_ephemeral_messages">Self-destructing messages</string>
+    <string name="after_30_seconds">After 30 seconds</string>
+    <string name="after_1_minute">After 1 minute</string>
 </resources>