reverted previous changes to costs type in the frontend and changed t… #2832

Job	Run time
PHPMD	13s
FE asset formatting check	22s
FE Asset Linting	18s
Static Code Analysis	37s
Coding Guidelines Check	19s
Run frontend unit- and functional-tests	42s
Build Docker Images	7m 1s
Run backend unit- and functional-tests	1m 50s
Run E2E-tests via Cypress	33m 8s
Publish	0s
Scan vulnerabilities	0s
Deploy and notify	0s
	44m 30s

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