style switch user icon same as user list page

public/css/app.css

@@ -266,6 +266,7 @@ body {
 #switchuser img {
   width: 50px;
   margin-bottom: 5px;
+  border-radius: 50%;
 }
 
 #switchuser .btn {

public/mix-manifest.json

@@ -1,4 +1,4 @@
 {
-    "/css/app.css": "/css/app.css?id=7934e5acfe81c1e4be21",
+    "/css/app.css": "/css/app.css?id=24e9bb4fa993b66f0572",
     "/js/app.js": "/js/app.js?id=f18d23b8fc7a094a2c66"
 }

resources/assets/sass/_app.scss

@@ -28,6 +28,7 @@ body {
 	img {
 		width: 50px;
 		margin-bottom: 5px;
+		border-radius: 50%;
 	}
 	.btn {
 		font-size: 13px;