Create a blog post for release v3.28.0

[maxkfranz]

Create Issue for new release

• Create a file with name YYYY-MM-DD-VERSION-release.md in the _posts directory.

• Include these main points in the posts

  • layout
  • title
  • subtitle
  • tags
  • New important features and who contributed to them.
  • Full list of changes.

• Sample blog post:

---
layout: post
title: Cytoscape.js $VERSION released
subtitle: An overview of what's new in Cytoscape.js $VERSION
tags:
- news
---

Cytoscape.js $VERSION has been released.  This version brings with it a [new right-slanting rhomboid shape](https://github.com/cytoscape/cytoscape.js/issues/3123) by [@somaniv](https://github.com/somaniv) and [trusted-types support](https://github.com/cytoscape/cytoscape.js/pull/3118) by [Jakub Vrána](https://github.com/vrana).

The full list of changes can be found in the [3.25.0 milestone on GitHub](https://github.com/cytoscape/cytoscape.js/milestone/236?closed=1).