add assets

assets/fontawesomefree/svgs/solid/face-frown.svg

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-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.0.0-beta1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M256 0C114.6 0 0 114.6 0 256s114.6 256 256 256s256-114.6 256-256S397.4 0 256 0zM336 176c17.68 0 31.97 14.25 31.97 32s-14.29 32-31.97 32c-17.8 0-32.09-14.25-32.09-32S318.2 176 336 176zM175.1 176c17.8 0 32.09 14.25 32.09 32s-14.29 32-32.09 32c-17.68 0-31.97-14.25-31.97-32S158.3 176 175.1 176zM371.1 399.7C370.1 399.9 369 400 367.1 400c-7.469 0-14.12-5.25-15.66-12.88C351.8 384.5 337.1 320 256 320s-95.75 64.47-96.34 67.22c-1.812 8.625-10.03 14.16-18.88 12.41c-8.625-1.781-14.19-10.12-12.47-18.75C134.8 348.8 169.7 288 256 288s121.3 60.75 127.7 92.88C385.4 389.5 379.8 397.1 371.1 399.7z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.0.0-beta3 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2021 Fonticons, Inc. --><path d="M0 256C0 114.6 114.6 0 256 0C397.4 0 512 114.6 512 256C512 397.4 397.4 512 256 512C114.6 512 0 397.4 0 256zM159.3 388.7C171.5 349.4 209.9 320 256 320C302.1 320 340.5 349.4 352.7 388.7C355.3 397.2 364.3 401.9 372.7 399.3C381.2 396.7 385.9 387.7 383.3 379.3C366.8 326.1 315.8 287.1 256 287.1C196.3 287.1 145.2 326.1 128.7 379.3C126.1 387.7 130.8 396.7 139.3 399.3C147.7 401.9 156.7 397.2 159.3 388.7H159.3zM176.4 176C158.7 176 144.4 190.3 144.4 208C144.4 225.7 158.7 240 176.4 240C194 240 208.4 225.7 208.4 208C208.4 190.3 194 176 176.4 176zM336.4 240C354 240 368.4 225.7 368.4 208C368.4 190.3 354 176 336.4 176C318.7 176 304.4 190.3 304.4 208C304.4 225.7 318.7 240 336.4 240z"/></svg>