fix: Use Spring's native CSRF protection, and fix login page #20315

Job	Run time
path-filter	13s
server-spotless / spotless-check	2m 10s
server-unit-tests / server-unit-tests	26m 2s
client-prettier / prettier-check	2m 35s
client-check-cyclic-deps / check-cyclic-dependencies	1m 25s
client-build / client-build	10m 0s
client-lint / client-lint	5m 14s
client-unit-tests / client-unit-tests	8m 11s
qc-result	1s
	55m 51s

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