Enable option to disable adding unread messages to the account

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

@@ -256,7 +256,6 @@ public class FragmentFolder extends FragmentBase {
         grpImap.setVisibility(imap ? View.VISIBLE : View.GONE);
         tvParent.setText(parent);
         grpParent.setVisibility(parent == null ? View.GONE : View.VISIBLE);
-        cbCountUnread.setVisibility(BuildConfig.DEBUG ? View.VISIBLE : View.GONE);
         cbAutoClassifySource.setVisibility(View.GONE);
         cbAutoClassifyTarget.setVisibility(View.GONE);
         tvAutoClassifyPro.setVisibility(View.GONE);

app/src/main/res/values/strings.xml

@@ -1381,7 +1381,7 @@
     <string name="title_poll_folder">Check periodically instead of continuous synchronize</string>
     <string name="title_poll_folder_remark">Most email servers allow push messages for a handful of folders only!</string>
     <string name="title_download_folder">Automatically download message texts and attachments</string>
-    <string name="title_count_unread" translatable="false">Count unread messages</string>
+    <string name="title_count_unread">Add the number of unread messages to the account</string>
     <string name="title_notify_folder">Notify on new messages</string>
     <string name="title_auto_classify_source">Classify new messages in this folder</string>
     <string name="title_auto_classify_target">Automatically move classified messages to this folder</string>