front: fix the number of loading states #14372

Job	Run time
Check dockerfiles	7s
Check commits	8s
Build (core-build, core)	51s
Check final newline	7s
Build (editoast, editoast-test)	19s
Check generated railjson sync	26s
Build (gateway-test, gateway-standalone, gateway-front)	2m 36s
Build (front-build, front-tests, front-devel, front-nginx)	2m 40s
Check integration tests	1m 23s
Check railjson generator	1m 53s
Build (osrdyne, osrdyne-test)	17s
Check scripts	5s
Check infra schema sync	20s
Check reuse compliance	12s
Check osrd schema	39s
Check toml	9s
Check core	4m 9s
Check editoast lints	9m 0s
Check editoast tests	6m 22s
Check editoast openapi	1m 1s
Check front rtk sync	1m 27s
Check gateway	3m 26s
Check osrdyne	3m 48s
Check front	2m 25s
End to end tests	14m 15s
Integration tests	15m 56s
	1h 14m 1s

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