Feat: create github issue on new add feed form

[Alessandro100]

closes #764
Summary:

Create a github issue when a new feed is submitted / updated

Expected behavior:

When a new / updated feed is submitted (in production) a github issue will be created. That github issue will be linked in the slack notification as well

Testing tips:

Will need to be tested in production

Please make sure these boxes are checked before submitting your pull request - thanks!

• Run the unit tests with ./scripts/api-tests.sh to make sure you didn't break anything
• Add or update any needed documentation to the repo
• Format the title like "feat: [new feature short description]". Title must follow the Conventional Commit Specification(https://www.conventionalcommits.org/en/v1.0.0/).
• [X Linked all relevant issues
• Include screenshot(s) showing how this pull request works and fixes the issue(s)

[github-actions]

Preview Firebase Hosting URL: https://mobility-feeds-dev--pr-768-hgukmqh0.web.app