JIRA - Show the JIRA issue associated to a feature in Flagsmith

### Is your feature request related to a problem? Please describe.

Be able to see in Flagsmith when a feature is associated to a JIRA request. Either with a link or a custom field that is updated automatically. This helps with governance within large organizations. This can be manually done via custom fields.

### Describe the solution you'd like.

Tag a feature in Flagsmith with the JIRA identify. Similar to Github integration

### Describe alternatives you've considered

Having link to JIRA issue directly in the application

### Additional context

_No response_