fix: add novita preset icon asset

ui/public/icons/novita.svg

@@ -0,0 +1,9 @@
+<svg height="1em" style="flex:none;line-height:1" viewBox="0 0 24 24" width="1em" xmlns="http://www.w3.org/2000/svg">
+  <title>Novita AI</title>
+  <path
+    clip-rule="evenodd"
+    d="M9.167 4.17v5.665L0 19.003h9.167v-5.666l5.666 5.666H24L9.167 4.17z"
+    fill="#23D57C"
+    fill-rule="evenodd"
+  />
+</svg>