New footer (#2988)

* Update footer to new design

* Update footer with changelog and security notice

* Move mastodon icon

* Make full-width instead of card

* Intl extract, lint

packages/assets/external/twitter.svg

@@ -1 +1,10 @@
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+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_3564_5601)">
+<path d="M18.9641 1.3335H22.6441L14.5641 10.3864L24.0041 22.6668H16.5961L10.7961 15.2041L4.15609 22.6668H0.476094L9.03609 12.9842L-0.00390625 1.3335H7.58809L12.8281 8.15072L18.9641 1.3335ZM17.6761 20.5414H19.7161L6.51609 3.38024H4.32409L17.6761 20.5414Z" fill="currentColor"/>
+</g>
+<defs>
+<clipPath id="clip0_3564_5601">
+<rect width="24" height="24" fill="white"/>
+</clipPath>
+</defs>
+</svg>