Add animation speed slider in general tab, always collapse activeWindow

GeneralTab: add animation speed slider
Workspace: set activeWindow to always collapsed except for hover
Misc: replaced a lot of animations with Style.animationXYZ

Commons/Settings.qml

@@ -140,6 +140,8 @@ Singleton {
         property bool dimDesktop: false
         property bool showScreenCorners: false
         property real radiusRatio: 1.0
+        // Animation speed multiplier (0.1x - 2.0x)
+        property real animationSpeed: 1.0
         // Replace sidepanel toggle with distro logo (shown in bar and/or side panel)
         property bool useDistroLogoForSidepanel: false
       }

Commons/Style.qml

@@ -56,9 +56,9 @@ Singleton {
   property real opacityFull: 1.0
 
   // Animation duration (ms)
-  property int animationFast: 150
-  property int animationNormal: 300
-  property int animationSlow: 450
+  property int animationFast: Math.round(150 * Settings.data.general.animationSpeed)
+  property int animationNormal: Math.round(300 * Settings.data.general.animationSpeed)
+  property int animationSlow: Math.round(450 * Settings.data.general.animationSpeed)
 
   // Dimensions
   property int barHeight: 36