Get "start work" form default prefix from issue type

[David Morris]

I use Bitbucket and Jira and the Atlassian VSCode extension. Our issues are generally of the type “bug” or “new feature.” It would be nice to have the default value of the prefix populated with “bugfix” or “feature” based on the issue type, because sometimes I forget, and I don’t want to have to think about that anyway, I want to immediately click “start” if there’s nothing special about this ticket or branch.