Feat: 647 display multiple countries format

[Alessandro100]

closes #647 Summary:

Format the new country data as shown in the screenshots

Expected behavior:

Location data should be shown as: 🇨🇦 Canada | 🇺🇸 United States

Testing tips:

Go on the search page and see if the location data is shown as above. TIP: Spain is a good search for many countries

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
• [X] 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
• [X] Include screenshot(s) showing how this pull request works and fixes the issue(s)

[github-actions[bot]]

Preview Firebase Hosting URL: https://mobility-feeds-dev--pr-680-eky9l77j.web.app

[cka-y]

Could we sort the locations by country name when multiple locations are present? This would ensure consistency between the search results view and the individual feed's page. Or maybe this should be done in the backend side. Thoughts? (cc: @davidgamez)