Adding latest news block

[anuraggupta228]

Please always provide the GitHub issue(s) your PR is for, as well as test URLs where your change can be observed (before and after):

Fix https://github.com/aemsites/momentive/issues/24

Test URLs:

• Before: https://main--momentive--aemsites.hlx.live/drafts/anurgup/issue-24/latest-news
• After: https://issue-24--momentive--aemsites.hlx.live/drafts/anurgup/issue-24/latest-news

[aem-code-sync[bot]]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed. In case there are problems, just click a checkbox below to rerun the respective action.

• [ ] Re-run PSI checks
• [ ] Re-sync branch

Commits

* [c1b208f](https://github.com/aemsites/momentive/commit/c1b208f60f09b9b17037485f62cb71da96b78835) :white_check_mark: (latest)

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/drafts/anurgup/issue-24/latest-news

[anuraggupta228]

Also, udpated sidekick Library at : https://issue-24--momentive--aemsites.hlx.page/tools/sidekick/library.html?plugin=blocks&path=/tools/sidekick/blocks/latest-news&index=0

[samuelopra]

This looks good, but added a small comment