[auth] Add allegro icon (#6814)

## Description
Added 1 new custom SVG icon:

- **allegro.svg**

-## Tests

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

@@ -1993,6 +1993,10 @@
     {
       "title": "ISC2",
       "slug": "isc2"
+    },
+    {
+      "title": "Allegro",
+      "slug": "allegro"
     }
   ]
-}
+}

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

@@ -0,0 +1,8 @@
+<svg version="1.2" baseProfile="tiny-ps" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1386 1594" width="1386" height="1594">
+	<title>logo (15)-svg copy-svg</title>
+	<style>
+		tspan { white-space:pre }
+		.shp0 { fill: #ff5a00 } 
+	</style>
+	<path id="Layer" fill-rule="evenodd" class="shp0" d="M1385.14 634.99L1385.14 1547.13C1385.14 1553.03 1384.01 1558.88 1381.76 1564.35C1379.45 1569.82 1376.13 1574.75 1372 1578.93C1367.82 1583.11 1362.83 1586.44 1357.36 1588.69C1351.89 1590.94 1346.04 1592.12 1340.14 1592.12L570.51 1592.12C534.63 1594.16 498.65 1593.2 462.98 1589.23C427.26 1585.26 391.98 1578.29 357.44 1568.42C322.9 1558.55 289.28 1545.79 256.88 1530.35C224.49 1514.85 193.44 1496.67 164.05 1475.97C137.02 1453.77 112.73 1428.52 91.6 1400.63C70.47 1372.8 52.66 1342.56 38.61 1310.54C24.56 1278.53 14.32 1244.96 8.1 1210.59C1.82 1176.16 -0.32 1141.14 1.61 1106.29L1.61 1101.41C1.61 641.05 502.94 580.24 666.61 580.24L1046.9 580.24L1046.9 546.83C1047.7 524.84 1045.5 502.8 1040.36 481.41C1035.21 460.01 1027.22 439.42 1016.54 420.17C1005.87 400.92 992.63 383.17 977.23 367.51C961.79 351.8 944.25 338.28 925.21 327.29C785.88 256.77 512.11 282.89 283.91 423.38C278.5 428.1 271.85 431.32 264.77 432.66C257.69 434 250.34 433.47 243.53 431.05C236.72 428.64 230.66 424.46 225.99 418.93C221.38 413.41 218.27 406.76 216.98 399.63L202.99 171.03C202.99 168.08 203.31 165.18 204.06 162.34C204.76 159.5 205.88 156.77 207.33 154.19C208.73 151.67 210.5 149.31 212.53 147.22C214.62 145.13 216.93 143.31 219.45 141.8C259.67 118.58 301.4 97.99 344.3 80.24C387.26 62.49 431.29 47.59 476.17 35.63C521.12 23.67 566.75 14.71 612.82 8.76C658.89 2.86 705.33 -0.03 751.78 0.13C937.98 0.13 1138.77 54.24 1238.52 163.09C1338.32 271.95 1384.55 429.44 1384.55 636.81L1385.14 634.99ZM1046.9 858.76L687.31 858.76C410.48 858.76 355.13 1022.96 355.13 1105.05C354.87 1119.64 356.37 1134.17 359.64 1148.38C362.91 1162.59 367.9 1176.32 374.49 1189.3C381.09 1202.33 389.24 1214.45 398.84 1225.44C408.39 1236.49 419.22 1246.25 431.18 1254.61C442.71 1263.35 454.94 1271.18 467.7 1277.99C480.47 1284.8 493.71 1290.65 507.39 1295.47C521.01 1300.25 535.06 1304 549.27 1306.63C563.48 1309.26 577.91 1310.76 592.39 1311.19L1046.9 1311.19L1046.9 858.76Z" />
+</svg>