[Auth] add warner bros. icon (#6373)

## Description
Fixes #5949

## Tests

| before | after |
| ---- | ---- |
| ![Screenshot From 2025-06-26
12-48-36](https://github.com/user-attachments/assets/e8be0c70-bd3a-4a03-beb7-41ef37e353c6)
| ![Screenshot From 2025-06-26
13-02-25](https://github.com/user-attachments/assets/ba37473f-fb0d-4405-b490-3fc3625121ce)
|

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

@@ -1377,6 +1377,13 @@
       "title": "WARGAMING.NET",
       "slug": "wargamingnet"
     },
+    {
+      "title": "Warner Bros.",
+      "slug": "warner_bros",
+      "altNames": [
+          "Warner Brothers"
+      ]
+    },
     {
       "title": "Wealthfront"
     },

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

@@ -0,0 +1,33 @@
+<svg xmlns="http://www.w3.org/2000/svg" id="LOGOs" width="1232.41" height="1190.04" version="1.1">
+    <defs id="defs3">
+        <clipPath id="clippath">
+            <path id="rect1" d="M233.78999 24.48h1232.4301v1190.05H233.78999z" class="cls-2" />
+        </clipPath>
+        <clipPath id="clippath-1">
+            <path id="path1"
+                d="M474.54 204.58v60.43l-80.56 43.63v60.47l-81.29 43.6c8.18 55.98 34.51 238.9 168.3 418.44 136.09 184.87 315.02 274.57 369.01 302.16 53.99-27.6 232.92-117.29 369.01-302.16 133.78-179.54 160.11-362.46 168.3-418.44l-81.29-43.6v-60.47l-80.56-43.63v-60.43C1114.01 151.44 991.24 116.49 850 97.72c-141.24 18.77-264.01 53.72-375.46 106.86"
+                class="cls-2" />
+        </clipPath>
+        <clipPath id="clippath-2">
+            <path id="rect2" d="M-907.41998-475.10001h3506.1299v2268.6699h-3506.1299z" class="cls-2" />
+        </clipPath>
+        <linearGradient id="linear-gradient" x1="-.30000001" x2="2.5599999" y1="-2.74" y2="-2.74"
+            gradientTransform="matrix(375.15 0 0 -375.15 425.95 -411.26)"
+            gradientUnits="userSpaceOnUse">
+            <stop id="stop1" offset="0" stop-color="#4047ff" />
+            <stop id="stop2" offset="1" stop-color="#04006c" />
+        </linearGradient>
+        <style id="style1">.cls-2{fill:none;stroke-width:0}</style>
+    </defs>
+    <g id="g6" style="clip-path:url(#clippath)" transform="translate(-233.81 -24.49)">
+        <g id="g4" style="clip-path:url(#clippath-1)">
+            <path id="rect4" d="M312.69 97.720001H1387.3v1035.61H312.69z"
+                style="stroke-width:0;fill:url(#linear-gradient)" />
+        </g>
+        <g id="g5" style="clip-path:url(#clippath-2)">
+            <path id="path4"
+                d="M1378.69 325.7v-60.27l-80.55-43.63v-63.03l-41.32-19.68C1139.4 83.1 1009.56 45.71 859.8 25.81l-9.79-1.32-9.78 1.32C690.47 45.71 560.62 83.1 443.21 139.09l-41.32 19.68v63.03l-80.55 43.63v60.27l-87.53 46.95 6.92 50.03c23.19 167.86 84.39 319.78 181.82 451.63 98.47 133.22 231.4 242.22 395.07 324.02l32.4 16.2 32.4-16.2c163.68-81.81 296.61-190.8 395.08-324.02 97.43-131.85 158.63-283.77 181.82-451.63l6.92-50.03-87.53-46.95zm8.52 87.03c-8.18 55.98-34.51 238.9-168.3 418.44-136.09 184.87-315.02 274.56-369.01 302.16-53.99-27.6-232.92-117.29-369.01-302.16-133.79-179.54-160.11-362.46-168.3-418.44l81.29-43.6v-60.47l80.55-43.63V204.6c111.45-53.14 234.22-88.09 375.46-106.86 141.24 18.77 264.01 53.72 375.46 106.86v60.43l80.56 43.63v60.47l81.29 43.6zM812.06 228.61v778.38c-54.08-57.59-103.32-129.64-138.35-202.65l-71.52 42.76C509.4 744.2 445.93 617.81 405.6 450.99c20.58-23.97 41.68-45.36 62.94-64.45 30.86 138.98 75.81 256.15 144.6 352.49l25.96-15.04c-45.88-124.06-71.4-254.76-82.63-404.13 27.79-17.61 54.91-31.83 80.47-43.31 9.78 164.64 40.82 328.82 92.86 460.37l3.47-2.03-3.74-491.69c27.78-7.15 55.01-11.9 82.55-14.58m377.85 268.03c29.15-32.27 35.36-55.76 35.36-84.16 0-40.21-33.21-75.99-81.52-106.73-29.18-18.57-73.85-41.07-138.99-59.22-37.48-10.07-76.57-16.19-116.79-17.94v778.38c163.6-84.23 358.09-315.02 359.07-432.45.3-35.9-18.65-59.36-57.13-77.88M968.42 321.69c40.28 0 170.61 41.21 170.61 93.24 0 18.76-16.55 45.64-68.1 72.71l-102.5 54.97V321.69Zm101.55 431.65c-23.03 26.55-60.74 67.03-101.55 98.57V628.57s147.88-83.22 153.31-86.77c44.26 11.21 42.02 43.77 42.01 47.15-.04 41.01-41.96 104.5-93.77 164.39"
+                style="stroke-width:0;fill:#ffc100" />
+        </g>
+    </g>
+</svg>