docs: event filter page (#3467) #7429

Job	Run time
sample_operators_tests (sample-operators/mysql-schema)	3m 45s
sample_operators_tests (sample-operators/webpage)	4m 11s
sample_operators_tests (sample-operators/leader-election)	4m 38s
sample_operators_tests (sample-operators/operations)	10m 2s
sample_operators_tests (sample-operators/tomcat-operator)	4m 22s
	26m 58s

Provide feedback