Fix missing locale bug introduced by #14429 (#14513)

Fixes #14512

Author: delvh

options/locale/locale_en-US.ini

@@ -929,6 +929,7 @@ ext_issues = Ext. Issues
 ext_issues.desc = Link to an external issue tracker.
 
 projects = Projects
+projects.desc = Manage issues and pulls in project boards. 
 projects.description = Description (optional)
 projects.description_placeholder = Description
 projects.create = Create Project