decrease default post edit time limit from 60 days to 30 days

decrease default post edit time limit from 60 days to 30 days

diff --git a/config/site_settings.yml b/config/site_settings.yml
index aadc621..1129cc0 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -690,7 +690,7 @@ posting:
     type: category
     default: ""
   post_edit_time_limit:
-    default: 86400
+    default: 43200
     max: 525600
   edit_history_visible_to_public:
     client: true

GitHub sha: dbd6c329