Fix ES type setting, add ES client logging, improve plugin URL err

[mszostok]

Description

Changes proposed in this pull request:

• Fix setting type for ES index
• Add ES client logging
• Improve plugin URL err

Testing

• for ES use information on https://docs.botkube.io/community/contribute/elasticsearch-develop
• for OpenSearch you can run docker:

docker run --name opensearch --rm -d -p 9200:9200 -e http.port=9200 -e discovery.type=single-node -e http.max_content_length=10MB -e http.cors.enabled=true -e http.cors.allow-origin=\* -e http.cors.allow-headers=X-Requested-With,X-Auth-Token,Content-Type,Content-Length,Authorization -e http.cors.allow-credentials=true opensearchproject/opensearch:1.2.4

and open:

https://dejavu.reactivesearch.io/?appname=botkube-2023-09-19&url=https://admin:admin@localhost:9200&mode=edit

For ES you can also use the same UI.

Remember for OpenSearch to set the index.type to empty value:

communications:
  default-group:
    elasticsearch:
      server: https://localhost:9200
      username: 'admin'
      password: 'admin'
      skipTLSVerify: true
      enabled: true
      logLevel: "info" # can be one of: info,error,trace
      indices:
        'default':
          name: botkube
          type: ""
          shards: 1
          replicas: 0
          bindings:
            sources:
              - k8s-all-events
              - k8s-err-events
              - k8s-err-with-logs-events
              - k8s-create-events

Related issue(s)

Issue reported by user on https://botkube.slack.com/archives/C01CR1KS55K/p1693513948154599