doc: nrfconnect: fix indent issue (#21749)
doc: nrfconnect: fix indent issue (#21749)

Grouped nRF5340-related steps under one major step.

Signed-off-by: Grzegorz Ferenc <f2dd9a8ba2732dcfea0ebb15749d9e4ac7f08e93@nordicsemi.no>
project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip