Filter homepage issues

[MattIPv4]

Description

Only show issues from repos with the Hacktoberfest topic on the homepage.

Test process

Run import job, all issues loaded are from a repo with the Hf topic.

Requirements to merge

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code in hard-to-understand areas
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes