Allow syncing individual issues

[henrikje]

I love the convenience of having notes created for the issues I work on. And I don't really want notes created for all issues I work on. But sometimes you spend significant time and work on an issue which is not assigned to you. In such case, it would be very nice to be able to sync just that issue. So perhaps a new Obsidian action where you get to specify an issue number and it gets downloaded along with the ones assigned to you.