Clean up ClideHandle.

qml/ClideProjectView.qml

@@ -15,25 +15,14 @@ SplitView {
     // Path to the directory of the project opened in clide.
     required property string projectDir
 
-    Layout.fillHeight: true
-    Layout.fillWidth: true
     anchors.fill: parent
 
     // Customized handle to drag between the Navigation and the Editor.
-    handle: Rectangle {
+    handle: ClideHandle {
         id: verticalSplitHandle
 
-        border.color: SplitHandle.pressed ? RustColors.pressed : SplitHandle.hovered ? RustColors.hovered : RustColors.gutter
-        color: SplitHandle.pressed ? RustColors.pressed : SplitHandle.hovered ? RustColors.hovered : RustColors.gutter
-        implicitWidth: 8
-        radius: 2.5
-
-        // Execute these behaviors when the color is changed.
-        Behavior on color {
-            ColorAnimation {
-                duration: 400
-            }
-        }
+        hovered: SplitHandle.hovered
+        pressed: SplitHandle.pressed
     }
 
     Rectangle {