appsdk-bump-app-catalog 604 bumping sdk to 2186-0158c93

sdk commit: RallySoftware/appsdk@598707e64f1e11d536243bdae4cbeec9121bd500
author: Steven Boles
message: S66497 Fix project picker performance. Every item no longer thrashes layouts

sdk commit: RallySoftware/appsdk@0158c937a6f70b9e51486ff935ac2e7ba81646f1
author: Steven Boles
message: DE21003: Rich Text save prompt after pasting in rich text