front: add a modal to manage waypoints in manchette #12033

Job	Run time
check_commits	8s
check_generated_railjson_sync	21s
check_osrd_schema	36s
check_integration_tests	1m 20s
check_railjson_generator	1m 57s
check_toml	9s
Check final newline	12s
check_infra_schema_sync	17s
check_reuse_compliance	10s
build (core-build, core)	14s
build (editoast, editoast-test)	4m 4s
build (gateway-test, gateway-standalone, gateway-front)	2m 51s
build (front-build, front-tests, front-devel, front-nginx)	5m 46s
build (osrdyne, osrdyne-test)	14s
check_front_rtk_sync	1m 58s
check_editoast_tests	4m 13s
check_core	4m 11s
check_gateway	2m 4s
check_editoast_lints	5m 4s
check_editoast_openapi	1m 20s
check_osrdyne	2m 40s
check_front	2m 56s
integration_tests	8m 27s
	51m 12s

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