style(dashboard): satisfy prettier on CatalogPanels (#896)

The Frontend Check (format) job went red on development after the KPI
tiles landed: restructuring the template when the file moved out of
views/Dashboard.vue left three lines prettier disagrees with. Whitespace
only, no behaviour change.

Caught because 'npm run lint' and 'prettier --check' are SEPARATE gates
here - eslint exited 0 throughout.

Author: rubenvdlinde