Added airplane mode to debug info

app/src/main/java/eu/faircode/email/Log.java

@@ -1856,6 +1856,7 @@ public class Log {
             size += write(os, "Suitable=" + state.isSuitable() + "\r\n");
             size += write(os, "Unmetered=" + state.isUnmetered() + "\r\n");
             size += write(os, "Roaming=" + state.isRoaming() + "\r\n");
+            size += write(os, "Airplane=" + ConnectionHelper.airplaneMode(context) + "\r\n");
         }
 
         db.attachment().setDownloaded(attachment.id, size);