(css) Improve input field for folder name

UI/WebServerResources/scss/components/list/list.scss

@@ -26,6 +26,7 @@ md-list-item {
   .md-button md-icon {
     margin-left: 0;
   }
+
   .sg-item-name {
     font-size: sg-size(button);
     max-width: 75%; // leave some place for a secondary button
@@ -43,6 +44,7 @@ md-list-item {
 .md-sidenav-left {
   // Remove padding of input fields in the sidenav for better transitions between read and edit mode of a folder
   md-input-container {
+    margin: 0;
     padding: 0;
     .md-input {
       padding-left: 0;
@@ -296,4 +298,4 @@ sg-avatar-image {
 //  @extend .md-tile-left-tentative;
 //  margin-right: 0;
 //  margin-left: 0;
-//}
+//}