PLT-6277 Moved profile image cropping to server (#6269)

* PLT-6277 Moved profile image cropping to server

* Cosmetic refactoring of SettingPicture component

webapp/sass/routes/_settings.scss

@@ -95,6 +95,14 @@
             width: 128px;
         }
 
+        .profile-img-preview {
+            background-position: 50% 50%;
+            background-size: cover;
+            border-radius: 100%;
+            height: 128px;
+            width: 128px;
+        }
+
         .settings-table {
             display: table;
             margin: 0 auto;