Move frontend ability to create group-level work items of non-Epic type to a separate feature flag
Summary
Currently, when the user is trying to create a child issue under an Epic Work Item, the Create issue
button is enabled even if no project is selected;
Clicking on the button then fails silently since the user can create a group-level issues only if create_group_level_work_items
is enabled, so we need to also disable this button if create_group_level_work_items
is disabled and no project is selected from the dropdown.
Edited by Kushal Pandya