FE: KC: Removing KC cluster action is not disabled w/ r/o mode

Describe the bug (Actual behavior) I enable read only mode for Kafka Cluster. Under this mode I'm able to remove Kafka Connect connector.

Expected behavior I should't be able to remove Kafka Connect connector in read-only mode.

Set up

How do you run the app? Please provide as much info as possible:

1. App version: v0.5.0 (027d9b4)
2. Helm chart version, if you use one: kafka-ui-0.5.2
3. Any IAAC configs

yamlApplicationConfig:
  kafka:
    clusters:
      - name: bds
        bootstrapServers: "kafka:9092"
        schemaRegistry: "http://kafka-cp-schema-registry.default.svc:8081"
        readOnly: true
        kafkaConnect:
        - name: connect
          address: "http://kafka-cp-kafka-connect.default.svc:8083"

Steps to Reproduce

1. Go to Kafka Connect connectors.
2. Click on ... next to connector.
3. Remove it

Screenshots