Update unicode.svg (#410)

New logo

images/svg/unicode.svg

@@ -3,4 +3,4 @@ aria-label="Unicode" role="img"
 viewBox="0 0 512 512"><rect
 width="512" height="512"
 rx="15%"
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+fill="#55f"/><g fill="#fff"><path d="M428 199h-37c-2 0-3 1-3 3v65a779 779 0 001 50v9l-10-20-16-30-19-35-20-37-19-36-16-29-2-2-3-1h-54c-2 0-3 1-3 3v150c0 12-1 22-4 29s-6 14-11 19c-4 5-10 8-16 10l-21 3c-19 0-32-5-41-16s-14-26-14-44V139c0-2-1-3-3-3H77c-2 0-3 2-3 4v154c0 16 2 31 7 43a78 78 0 0051 48 138 138 0 0081 1c12-4 23-10 32-18 8-8 16-18 21-31s8-28 8-46v-96a613 613 0 0025 50 4630 4630 0 0080 142h49c2 0 3-1 3-3V203c0-3-1-4-3-4z"/><circle cx="410" cy="147" r="26"/></g></svg>