add: social sharing meta tags

[schmanu]

What it solves

Adds social sharing meta tags to display a preview image and description when sending a link to a safe on messaging / facebook / twitter

How to test it

Send a link to the deployed version on slack / twitter

Analytics changes

None

[cloudflare-pages]

Deploying with    Cloudflare Pages

Latest commit:	3721efa
Status:	✅  Deploy successful!
Preview URL:	https://96a125a7.web-core.pages.dev
Branch Preview URL:	https://change-og-image.web-core.pages.dev

View logs

[github-actions]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}

[katspaugh]

The code looks good, but does the image have to be a JPG?
PNG would look nicer.
And please run it through https://tinypng.com to reduce the size.

[schmanu]

The code looks good, but does the image have to be a JPG? PNG would look nicer. And please run it through https://tinypng.com to reduce the size.

done!

[katspaugh]

Approved, let's merge it now, and check again once the new domain goes live.

[JagoFigueroa]

After talking with Manu the testing for this ticket will be done after it is deployed. Thanks!