[#190] Remove the default value for the maximum number of gantt items

config/settings.yml

@@ -68,7 +68,7 @@ feeds_limit:
   default: 15
 gantt_items_limit:
   format: int
-  default: 500
+  default: ''
 # Maximum size of files that can be displayed
 # inline through the file viewer (in KB)
 file_max_size_displayed: