Add Send & ffsend to File Sharing page

[matchboxbananasynergy]

This PR adds Send and ffsend to the File Sharing section after the discussion which took place on our forum:
https://discuss.privacyguides.org/t/add-send-firefox-send-fork-to-the-file-sharing-and-sync-page/

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[github-actions]

🎊 PR Preview a263b5a has been successfully built and deployed to https://privacyguides-privacyguides-org-preview-pr-1837.surge.sh

🕐 Build time: 104.176s

_{🤖 By surge-preview}

[privacyguides-bot]

This pull request has been mentioned on Privacy Guides. There might be relevant details there:

https://discuss.privacyguides.org/t/add-send-firefox-send-fork-to-the-file-sharing-and-sync-page/187/23

[KaiTebay]

I've suggested a minor abbreviation edit; otherwise, it looks great!

[ph00lt0]

LGTM

[privacyguides-bot]

This pull request has been mentioned on Privacy Guides. There might be relevant details there:

https://discuss.privacyguides.org/t/add-wormhole/772/2

[privacyguides-bot]

This pull request has been mentioned on Privacy Guides. There might be relevant details there:

https://discuss.privacyguides.org/t/improvements-to-the-file-sharing-and-sync-section/186/6

[privacyguides-bot]

This pull request has been mentioned on Privacy Guides. There might be relevant details there:

https://discuss.privacyguides.org/t/v2-27/1084/1