Import a Listener Component into JIRA CLOUD

I have developed a Listener Plugin which triggers mail to external Users Populated in Custom Field value. This plugin is developed in JIRA server which has atlassian-plugin.xml.

I am trying to transform this atlassian-plugin.xml to atlassian-conect.json file to upload the same plugin in JIRA Cloud , but unable to move ahead with Component Imports and Web resources.

Please help me in this regard.

Thank you.