docs

Remove trailing whitespace and add defaults to LDAP group-mapping docs #12449

Job	Run time
path-filters	3s
docs-checks	1m 1s
test-docs (:trino-resource-group-managers)	1m 5s
test-docs (:trino-main)	59s
test-docs (:trino-tests)	1m 1s
test-docs (:trino-plugin-toolkit)	58s
	5m 7s

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