NIconPicker: replace GridView with NGridView

Widgets/NIconPicker.qml

@@ -82,7 +82,7 @@ Popup {
     }
 
     // Icon grid
-    GridView {
+    NGridView {
       id: grid
       Layout.fillWidth: true
       Layout.fillHeight: true
@@ -90,45 +90,6 @@ Popup {
       cellWidth: root.cellW
       cellHeight: root.cellH
       model: root.filteredIcons
-      clip: true
-      reuseItems: true
-
-      ScrollBar.vertical: ScrollBar {
-        parent: grid
-        x: grid.mirrored ? 0 : grid.width - width
-        y: 0
-        height: grid.height
-        active: grid.ScrollBar.horizontal.active
-        policy: ScrollBar.AsNeeded
-
-        contentItem: Rectangle {
-          implicitWidth: 6
-          implicitHeight: 100
-          radius: Style.radiusM
-          color: parent.pressed ? Qt.alpha(Color.mHover, 0.8) : parent.hovered ? Qt.alpha(Color.mHover, 0.8) : Qt.alpha(Color.mHover, 0.8)
-          opacity: grid.contentHeight > grid.height ? (parent.active ? 1.0 : 0.0) : 0.0
-
-          Behavior on opacity {
-            NumberAnimation {
-              duration: Style.animationFast
-            }
-          }
-        }
-
-        background: Rectangle {
-          implicitWidth: 6
-          implicitHeight: 100
-          color: Color.transparent
-          opacity: grid.contentHeight > grid.height ? (parent.active ? 0.3 : 0.0) : 0.0
-          radius: Style.radiusM / 2
-
-          Behavior on opacity {
-            NumberAnimation {
-              duration: Style.animationFast
-            }
-          }
-        }
-      }
       delegate: Rectangle {
         width: grid.cellWidth
         height: grid.cellHeight