docs: preferredSearchOperator and blockedSearchOperators #13211

Job	Run time
setup-matrix	7s
install	24s
typescript	39s
lint	59s
unit-tests	42s
instance-version	4s
build	56s
cypress-dev (1, cypress/e2e/AllAccessibleRecordsPage/AllAccessibleRecordsPage.feature, cypress/e2...	11m 1s
cypress-dev (3, cypress/e2e/EnrollmentAddEventPage/EnrollmentAddEventPageForm/EnrollmentAddEventP...	7m 13s
cypress-dev (4, cypress/e2e/EnrollmentAddEventPage/EnrollmentAddEventPageNavigation/EnrollmentAdd...	10m 10s
cypress-dev (5, cypress/e2e/EnrollmentAddEventPage/ProgramStageSelector/ProgramStageSelector.feat...	11m 33s
cypress-dev (2, cypress/e2e/Changelog/Changelog.feature, cypress/e2e/EnrollmentEditEventPage/Enro...	11m 19s
release	34s
	55m 41s

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