feat: add nextjs skeleton for the ui (#11) #125

Job	Run time
unit-test-frontend / nextjs-unit-tests	18s
build-nextjs / nextjs-build	34s
build-gocert / go-build	58s
go-lint / lint	55s
go-vet / go-vet	58s
unit-test-gocert / go-unit-tests	1m 15s
rock-build / build-rock	4m 47s
publish / publish-rock	27s
rock-scan / scan	45s
	10m 57s

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