front: simplify usePathfinding #15323

Job	Run time
Build (core-build, core)	13s
Check dockerfiles	13s
Check generated railjson sync	19s
Build (editoast, editoast-test)	30s
Build (gateway-test, gateway-standalone, gateway-front)	2m 46s
Check railjson generator	1m 49s
Build (front-build, front-tests, front-devel, front-nginx)	2m 40s
Check scripts	3s
Build (osrdyne, osrdyne-test)	26s
Check commits	6s
Check final newline	10s
Check infra schema sync	17s
Check integration tests	1m 31s
Check osrd schema	40s
Check toml	5s
Check reuse compliance	11s
Check core	4m 3s
Check front rtk sync	1m 33s
Check editoast tests	6m 37s
Check editoast lints	8m 50s
Check editoast openapi	1m 3s
Check front	2m 29s
Check gateway	3m 30s
Check osrdyne	3m 47s
End to end tests	12m 14s
Integration tests	1m 3s
	57m 8s

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