[auth] add exaroton custom icon (#6682)

Add custom SVG icon for [exaroton ](https://exaroton.com) to enhance
branding.
Optimized icon with SVGOMG

mobile/apps/auth/assets/custom-icons/_data/custom-icons.json

@@ -516,6 +516,14 @@
       ],
       "hex": "858585"
     },
+    {
+      "title": "exaroton",
+      "slug": "exaroton",
+      "altNames": [
+        "Exaroton"
+      ],
+      "hex": "17AB17"
+    },
     {
       "title": "Fanatical",
       "slug": "fanatical",

mobile/apps/auth/assets/custom-icons/icons/exaroton.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128" fill="none"><g clip-path="url(#a)"><path fill="#19BA19" d="M64 128c35.3462 0 64-28.6538 64-64 0-35.3462-28.6538-64-64-64C28.6538 0 0 28.6538 0 64c0 35.3462 28.6538 64 64 64Z"/><path fill="#fff" d="M96.6725 54.9921a2.4812 2.4812 0 0 0 0-3.51l-20.25-20.25a2.4822 2.4822 0 0 0-1.755-.7272 2.4807 2.4807 0 0 0-1.755.7272l-7.25 7.25a2.4812 2.4812 0 0 1-3.51 0l-7.195-7.22a2.4822 2.4822 0 0 0-1.755-.7272 2.4804 2.4804 0 0 0-1.755.7272l-20.2212 20.25a2.4802 2.4802 0 0 0-.7273 1.755 2.4812 2.4812 0 0 0 .7273 1.755l7.25 7.25a2.4815 2.4815 0 0 1 0 3.51l-7.25 7.1863a2.4809 2.4809 0 0 0 0 3.51l20.25 20.25a2.4822 2.4822 0 0 0 1.755.7272 2.4807 2.4807 0 0 0 1.755-.7272l7.25-7.25a2.4809 2.4809 0 0 1 3.51 0l7.25 7.25a2.4822 2.4822 0 0 0 1.755.7272 2.4807 2.4807 0 0 0 1.755-.7272l20.25-20.25a2.4826 2.4826 0 0 0 .7272-1.755 2.4809 2.4809 0 0 0-.7272-1.755l-7.25-7.25a2.4824 2.4824 0 0 1-.7273-1.755 2.4809 2.4809 0 0 1 .7273-1.755l7.1662-7.2088v-.0075ZM82.0663 67.9596c0 7.7875-6.35 14.1375-14.1375 14.1375h-7.955c-7.7875 0-14.1375-6.35-14.1375-14.1375v-7.96c0-7.7875 6.35-14.1375 14.1375-14.1375h7.955c7.7875 0 14.1375 6.35 14.1375 14.1375v7.96Z"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h128v128H0z"/></clipPath></defs></svg>