front: display new warnings in stdcm #12779

Job	Run time
check_railjson_generator	1m 48s
build (core-build, core)	25s
build (editoast, editoast-test)	15s
build (gateway-test, gateway-standalone, gateway-front)	2m 37s
check_commits	10s
build (front-build, front-tests, front-devel, front-nginx)	2m 31s
build (osrdyne, osrdyne-test)	25s
check_generated_railjson_sync	21s
check_infra_schema_sync	15s
check_integration_tests	1m 26s
check_osrd_schema	37s
check_reuse_compliance	8s
check_toml	5s
Check final newline	7s
check_front_rtk_sync	1m 50s
check_core	4m 4s
check_editoast_lints	8m 53s
check_editoast_tests	6m 35s
check_gateway	3m 24s
check_front	2m 43s
check_editoast_openapi	1m 5s
check_osrdyne	3m 14s
integration_tests	8m 15s
	51m 13s

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