dxp/issues#706: add different mocks and adjust test layout
changes
- added layout configs for the expected base cases provided
- adjusted index.html to contain the portal entrypoints of those layouts
- added test header with an overlayed second search config
test
- check the new options for the useMockedConfig hook
- change those in the useConfig hook and try different options
- test the header and search overlay
Edited by José Nieves