Add dismissible banner shortcode

[ddavison]

Description

• Refactor old dismissible banner to be a shortcode for Hugo.
• Add CVE-2021-45105 vulnerability banner

Motivation and Context

Noting the Selenium software is not affected by CVE-2021-45105 .

rel: #897

Screenshot

Types of changes

• Change to the site (I have double-checked the Netlify deployment, and my changes look good)
• Code example added (and I also added the example to all translated languages)
• [-] Improved translation
• [-] Added new translation (and I also added a notice to each document missing translation)

Checklist

• I have read the contributing document.
• I have used hugo to render the site/docs locally and I am sure it works.

[netlify]

✔️ Deploy Preview for jovial-austin-42fe02 ready!

🔨 Explore the source changes: 5b917c6

🔍 Inspect the deploy log: https://app.netlify.com/sites/jovial-austin-42fe02/deploys/61c241b479251400075c89f7

😎 Browse the preview: https://deploy-preview-898--jovial-austin-42fe02.netlify.app

[mdmintz]

https://deploy-preview-898--jovial-austin-42fe02.netlify.app/ - Looks good to me.

[ddavison]

@manoj9788 - would you mind reviewing? 🙏

[mdmintz]

I'm not an authorized reviewer, but I approve your changes.

[ddavison]

Now that I think about it... was it CVE-2021-44228 ?

[mdmintz]

@ddavison https://www.whitesourcesoftware.com/resources/blog/log4j-vulnerability-cve-2021-45105/

[mdmintz]

@ddavison Or https://www.ibm.com/blogs/psirt/an-update-on-the-apache-log4j-cve-2021-44228-vulnerability/

[mdmintz]

Perhaps there were multiple Log4j vulnerabilities in the wild. If there are more than one, perhaps we don't need to mention a specific one at all?

[diemol]

Nice @ddavison! I started working on that generic banner long time ago and forgot about it. Thanks for fixing it!

BTW I would just say Log4j without mentioning the specific vulnerability. But up to you.

Also, when merging, add [deploy site] to the commit message so the change gets actually deployed.

[manoj9788]

LGTM. Thanks @ddavison good to see you back! :)