Create a custom icon for Deloitte (#5096)

## Description
followed [this
guide](https://github.com/ente-io/ente/blob/main/auth/docs/adding-icons.md)

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

@@ -306,6 +306,9 @@
     {
       "title": "Discourse"
     },
+    {
+      "title": "Deloitte"
+    },
     {
       "title": "DMarket"
     },

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

@@ -0,0 +1,15 @@
+<svg version="1.2" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1545 1333" width="1545" height="1333">
+	<title>Deloitte-svg</title>
+	<style>
+		.s0 { fill: #86bc24 } 
+		.s1 { fill: #0f0b0b } 
+	</style>
+	<g id="layer1">
+		<g id="g3359">
+			<g id="g3371">
+				<path id="path3356" class="s0" d="m1354.4 1332.5c-105.1 0-190-84.8-190-189.6 0-104.9 84.9-189.6 190-189.6 105 0 189.9 84.7 189.9 189.6 0 104.8-84.9 189.6-189.9 189.6z"/>
+				<path id="path3360" fill-rule="evenodd" class="s1" d="m1089.4 628.2q0 328.2-176.7 505.8-176.8 177.6-497.1 177.6h-414.9v-1311.1h443.9q308.8 0 476.8 161.4c112 107.6 168 263 168 466.3zm-359.7 12.5q0-180.1-69.7-267.2c-46.6-58-117.1-87-211.9-87h-100.9v734.5h77.2c105.3 0 182.5-31.2 231.6-93.8 49.1-62.4 73.7-157.9 73.7-286.5z"/>
+			</g>
+		</g>
+	</g>
+</svg>