Extract JiraService#find_issue method
What does this MR do?
This part of the upcoming work related to #294155 (closed).
- I've extracted a new method
JiraService#find_issue
that we are going to use to retrieve the data for the Jira Issue Detail page. - I've also improved a little bit the spec and reduce the number of queries to the database.
Related to #294155 (closed)