[auth] Add icon for Ankama & Seafile (#5030)

## Description

SVG Icon added for [Ankama](https://www.ankama.com/) and
[Seafile](https://www.seafile.com/en/home/)

Source of the icon is their website then cropped

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

@@ -35,6 +35,10 @@
     {
       "title": "Amazon"
     },
+    {
+      "title": "Ankama",
+      "slug": "ankama"
+    },
     {
       "title": "Anycoin Direct",
       "slug": "anycoindirect"
@@ -901,6 +905,10 @@
     {
       "title": "Samsung"
     },
+    {
+      "title": "Seafile",
+      "slug": "seafile"
+    },
     {
       "title": "Sendgrid"
     },

auth/assets/custom-icons/icons/ankama.svg

@@ -0,0 +1,5 @@
+<svg version="1.2" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 720 720" width="720" height="720">
+	<title>ankama</title>
+	<path class="s0" d="m572.3 253.3c-0.3-1.4-0.5-3-1.1-4.4-15.1-46-59.7-76.2-107.9-71.5-31.2 3-55.6 18.9-73.4 44.7-3.8 5.7-7.1 12-10.1 18.4-9.4 19.5-19.5 38.7-24.7 59.7-0.5 1.6-1.1 3.5-1.9 4.9-2.5 4.6-5.5 6.3-10.1 4.1-11.7-5.7-23.8-5.2-36.1-4.4-20.3 1.1-37.9-5.7-52.9-19.5-36.1-33.1-35.3-91 1.9-123 26.8-23.3 43.3-52.1 49.3-86.8 3-16.5 3.3-33.4 0-49.9-0.5-2.7-0.8-5.5-1.4-8.7 7.4-1.4 14.3 0 20.8 2.2 42.8 12.4 69.3 40.6 81.6 82.7 0.5 2.2 1.1 4.4 1.6 6.8 0.8 3 2.7 4.9 5.7 5.5 3.3 0.5 6.3-0.5 7.9-3.5 3-6.3 5.7-12.7 8.2-19.2 3.3-9.7 3.8-10.5 14.3-10.6 58.3-0.8 111.7 15.4 159.4 49 60.5 42.9 98.4 101.4 115.7 173.4 0.8 3.5 0.8 7.6 0.5 11.6-4.6 68-26.8 129.6-68.8 183.5-49 63.1-112.4 104.4-190.7 121.4-72.6 15.8-141.7 4.9-207.1-30.1-1.4-0.8-2.7-1.6-3.8-2.5-0.3 0-0.5-0.8-1.6-2.2 8.7 3 17 5.5 24.7 8.6 13.9 5.7 28.5 8.7 43.6 8.6 14.3 0 28.2 0.8 42.5 0 63.9-3.8 119.5-27.4 166.2-70.7 23.6-21.9 32.8-50.7 30.7-82.4-1.9-32.3-16.5-58.6-42.2-78.3-18.9-14.6-32-33.1-38-56.4-4.1-15.8-4.6-32-0.8-48.2 5.7-24.7 27.7-41.7 52.3-40.6 17 0.8 29.6 9 39.5 22.5 1.4 1.9 2.7 4.1 4.1 6.3 0.5 0 0.8-0.5 1.4-0.8l0.8 0.3v-0.5zm-263.5-55.1c-14.7 0-26.3 12.4-26.3 27.7 0 15.3 11.6 27.4 26.6 27.4 15 0 26-12.4 26-27.1 0-14.7-12-27.9-26.3-27.9v-0.2z"/>
+	<path class="s0" d="m168.2 314.5c7.4 1.6 14.7 3.3 22.5 4.9 10.9 2.2 14.3 6.8 12 18.1-1.6 8.2-3 16.2-4.9 24.1-0.8 3.5 0 5.7 2.5 8.2 22.8 23.6 50.1 38.4 83.8 43.6-2.2-1.4-3-2.2-4.1-2.7-19.5-10.1-27.7-25.2-25.2-46.6 1.1-9.8 0-19.2-6-27.4-3.8-5.5-9-9.7-13.9-14.3-1.6-1.6-3.8-2.5-6-4.1 5.2-3.3 10.5-3.3 15.4-3 7.4 0.3 14.7 1.4 22.2 3 11.6 2.5 21.7 8.2 30.4 16.2 6.5 6 12.4 12.4 18.7 18.4 13.9 13.6 25.2 12.8 37.2-2.7 7.6-9.8 12.4-21.4 15.8-33.1 3.8-12.7 8.2-24.9 15.4-36.1 7.4-11.6 16.5-21.7 27.4-30.1 9.7-7.4 19.7-6.8 30.7-3.3v9.7c-1.1 27.1 5.2 52.6 19.5 75.9 1.1 1.9 2.2 4.1 3.5 6 4.1 6.3 3.3 12-0.5 18.1-5.5 8.7-13.5 13.2-23.8 13.5h-6.3c-12.7 0-23.3 8.2-26.8 20.6-3 10.9 1.9 23.3 11.7 29.6 10.9 6.8 24.1 5.7 33.4-3 10.1-9.8 16.5-21.7 18.9-35.7 0.3-1.9 0.8-4.1 1.1-6 17.3-0.3 39.8 16.6 48.2 37.2 10.1 24.1 6.3 46.6-10.1 68.8-0.8-5.2-1.4-9.4-2.2-12.8-2.2-9.7-8.6-15.7-18.1-17.7-6.8-1.6-9.8 0-13.6 5.7-1.9 3-3.5 6.3-5.2 9.7-2.5 4.9-4.6 9.8-7.1 14.6-13.6 27.1-34.9 45.8-63.2 55.6-27.1 9.7-55.2 13.2-83.5 10.1-16.5-1.6-29.3-10.5-39.8-23.6 1.9-1.4 3.3-2.7 4.9-3.8 7.4-5.5 12.8-12.7 16.6-20.8 1.1-2.2 1.6-4.9 1.9-7.4 0.5-5.2-2.7-9.4-7.6-9.8-4.6-0.5-8.7 2.5-10.1 7.6-0.8 3.3-1.1 6.5-2.5 9.7-3.8 7.1-9.7 12.8-16.5 17-7.4 4.4-14.6 3.8-20-1.4-5.5-5.5-6-11.7-1.9-19.7 0.3-0.5 0.5-1.4 1.4-3-2.5 1.1-4.1 1.4-5.5 2.2-17.7 10.6-25.8 31.5-19.2 51.5 18.7 56.7-6 119.5-54 151-3.3 2.2-7.1 4.1-11.6 6.8 0-3-0.5-5.2-0.5-7.4-2.5-57.8-30.1-98.9-82.4-122.8-32.8-14.7-53.7-39.5-62.1-74-12.4-50.1 13.9-102.2 61.2-122.8 1.9-0.8 4.1-1.4 7.6-2.7-15.1 28.8-18.7 57.2-9.4 86.8 5.5 17.3 14.7 32 29 45.5 0.3-12.4-0.8-23.6 7.6-33.4 2.7 6.3 5.5 12 8.2 17.7 4.9 10.9 12.7 19.5 23.3 24.9 12 6.3 24.1 6.8 36.5 1.1 8.6-3.8 15.8-9.4 22.2-16.2 8.6-9 8.6-24.9 0.3-35.7-5.5-7.1-8.6-14.7-7.4-23.6 1.9-15.4 15.1-26.8 32-28.2 4.6-0.3 9.4 0 13.6 0.5 4.1 0.8 8.2 2.5 12.7 3.3-3.5-3.8-7.9-6.5-12.7-8.2-8.2-2.7-16.6-3.3-25.2-1.6-14.7 3.3-24.9 16.2-26.3 33.4-0.5 6.3 0 12.8 1.1 19.2 3 16.5-0.8 30.4-13.2 42.8-1.9-1.6-3.8-2.7-5.7-4.4-43.9-37.6-69.6-84.6-75.6-142.2-10.1-95.9 42.5-184.9 130.9-223 28.5-12.4 46-33.8 53.4-63.9 0.3-1.4 0.8-2.7 1.9-3.8 1.9 10.1 1.4 20.3-1.1 30.1-6 24.1-19.5 42.8-41.4 55.3-21.4 12.4-38.4 29-51.5 50.1-2.5 4.1-2.7 7.1 0 10.9 2.7 3.5 5.2 7.6 7.6 11.6 4.4 7.4 3 13.9-4.1 18.9-6.3 4.4-13.2 8.2-19.5 12.7-1.6 1.1-3.5 3.3-3.8 5.2-1.6 18.7-0.5 36.9 5.5 55.3l1.4-0.3-0.2-0.2zm192.8 132c14.3 0 25.8-11.3 25.5-25.2 0-13.6-12-25.8-25.5-25.8-13.5 0-25.2 11.3-25.5 25.5 0 14.3 11.3 25.5 25.2 25.5z"/>
+</svg>

auth/assets/custom-icons/icons/seafile.svg

@@ -0,0 +1,13 @@
+<svg version="1.2" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 180 120" width="180" height="120">
+	<title>seafile</title>
+	<defs>
+		<linearGradient id="g1" x2="1" gradientUnits="userSpaceOnUse" gradientTransform="matrix(0,114.369,-177.525,0,89.989,2.834)">
+			<stop offset="0" stop-color="#fad956"/>
+			<stop offset="1" stop-color="#ffa10f"/>
+		</linearGradient>
+	</defs>
+	<style>
+		.s0 { fill: url(#g1) } 
+	</style>
+	<path class="s0" d="m1.2 52.8c0-3 2.4-5.4 5.4-5.4 1.4 0 2.7 0.6 3.6 1.5q0-0.7 0-1.4c0-9.9 8-17.9 17.9-17.9 2.5 0 4.9 0.5 7.1 1.5q0-0.8 0-1.5c0-14.8 12-26.8 26.8-26.8 14.7 0 26.6 11.9 26.8 26.6-4.8 4.2-8.7 9.6-11.2 15.7-4.8-3-10.4-4.8-16.5-4.8-12.4 0-23.2 7.1-28.3 17.8h-19.1-7.1c-3 0-5.4-2.4-5.4-5.3zm141.2-16c-6.6-6.7-15.8-10.8-25.9-10.8-18.5 0-33.8 13.7-36.3 31.5-4.5-6.1-11.8-10-20-10-13.8 0-25 11.2-25 25 0 4 0.9 7.8 2.6 11.2-8.7 1.7-15.1 8.5-15.1 16.5 0 9.4 8.8 17 19.7 17 4.7 0 9.1-1.5 12.6-4l40.2-39.5c4.4-4.1 10.3-6.6 16.8-6.6 13.6 0 24.7 10.9 25.1 24.4q0 0-0.1-0.1c0.2 4-1.8 8.1-5.7 10.3-5.3 3.1-12 1.4-15-3.7-2.9-5.1-1-11.7 4.4-14.8q1.9-1.1 3.9-1.4-1.8-0.4-3.6-0.4c-9.9 0-17.9 8-17.9 17.9 0 9.9 8 17.9 17.9 17.9q0.6 0 1.3-0.1l0.5-0.1h35.1v0.2c10.7-0.5 20.9-10.4 20.9-22.5 0-12.3-10.6-22.4-22.9-22.4q-0.1 0-0.1 0c-2 3.6-4.4 5.7-7.1 7.9 2.8-5.2 4.5-11.2 4.5-17.6-0.1-10.1-4.2-19.2-10.8-25.8z"/>
+</svg>