change(web): add .edgeKey for use + validation of complex .split cases 🚂#15508

jahorton wants to merge 2 commits intorefactor/web/complex-search-space-reusekeymanapp/keyman:refactor/web/complex-search-space-reusefrom

feat/web/spur-edge-keykeymanapp/keyman:feat/web/spur-edge-keyCopy head branch name to clipboard