Add call to action to issue analytics empty state

What does this MR do and why?

Add call to action to issue analytics empty state

Covers 3 different cases:

1. Group has 0 projects
2. Group has >0 projects but 0 issues
3. Group has issues but none match the currently applied filter

Screenshots or screen recordings

Scenario	Before	After
group has 0 projects
group has >0 projects but 0 issues
group has issues but current filter matches 0 issues (no change)

How to set up and validate locally

1. Check out this branch
2. Create a new empty group
3. Ensure the group has access to EE features
4. Visit the Issue Analytics page for the group
   • You should see an empty state that has a "create project" CTA button
5. Create a project in the group
6. Return to the group's Issue Analytics page
   • You should now see an empty state that has a "create project" CTA button and a dropdown to select a project in which to create a new issue
7. In a group that has issues and has access to EE features, visit the Issue Analytics page
8. Filter on a label that does not have any issues
   • You should see the same empty state that would be seen in prod today in this scenario

Related to #8162 (closed) Related to #474922 (closed)