fix nemo/nautilus padding while scrolling issue

(cherry picked from commit 9f15409)

gtk-3.0/apps/gnome-applications.css

@@ -122,6 +122,13 @@ NautilusNotebook.notebook {
     border-left-width: 0;
     border-bottom-width: 0;
 }
+NautilusWindow NautilusCanvasView {
+    background: transparent;
+}
+
+NautilusWindow NautilusCanvasViewContainer {
+    background: #ffffff;
+}
 
 NautilusNotebook .frame {
     border-width: 0;

gtk-3.0/apps/nemo.css

@@ -61,6 +61,14 @@ NemoPathbarButton:active:hover {
 /* sidebar */
 
 NemoWindow NemoIconView {
+	background-color: transparent;
+}
+
+NemoWindow > GtkGrid > GtkPaned > GtkBox {
+	background-color: #ffffff;
+}
+
+NemoWindow > GtkGrid > GtkPaned > GtkBox.sidebar {
 	background-color: @base_color;
 }