front: rem to px in /common #15029

Job	Run time
Check generated railjson sync	20s
Check scripts	4s
Build (core-build, core)	16s
Build (editoast, editoast-test)	19s
Check commits	9s
Check dockerfiles	20s
Check final newline	7s
Build (gateway-test, gateway-standalone, gateway-front)	2m 36s
Build (front-build, front-tests, front-devel, front-nginx)	2m 34s
Check railjson generator	1m 50s
Check infra schema sync	17s
Build (osrdyne, osrdyne-test)	24s
Check integration tests	1m 29s
Check osrd schema	41s
Check toml	5s
Check reuse compliance	9s
Check core	4m 2s
Check editoast tests	6m 33s
Check editoast openapi	1m 2s
Check editoast lints	9m 7s
Check front	2m 20s
Check front rtk sync	1m 30s
Check gateway	3m 27s
Check osrdyne	3m 49s
Integration tests	1m 10s
End to end tests	15m 9s
	59m 49s

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