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/tumblr.svg

@@ -0,0 +1,10 @@
+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_3466_5793)">
+<path d="M18.7939 24H14.7856C11.1765 24 8.48678 22.1429 8.48678 17.7012V10.5855H5.20605V6.73219C8.81512 5.79709 10.3255 2.68972 10.4988 0H14.2471V6.10966H18.6205V10.5882H14.2471V16.7845C14.2471 18.6416 15.1848 19.2825 16.6768 19.2825H18.7939V24.0026V24Z" fill="currentColor"/>
+</g>
+<defs>
+<clipPath id="clip0_3466_5793">
+<rect width="13.5878" height="24" fill="white" transform="translate(5.20605)"/>
+</clipPath>
+</defs>
+</svg>