Update _access.conf to ensure Authorization header remove when pass_auth = false or 0

Fixing prev commit as it's negative logic.

Author: eduardpaul

backend/templates/_access.conf

@@ -4,7 +4,7 @@
     auth_basic            "Authorization required";
     auth_basic_user_file  /data/access/{{ access_list_id }};
 
-    {% if access_list.pass_auth == 1 or access_list.pass_auth == true %}
+    {% if access_list.pass_auth == 0 or access_list.pass_auth == false %}
     proxy_set_header Authorization "";
     {% endif %}