workspace: Always start in FLOATING state

It doesn't matter which animation we use to enter the overview,
we always want to start and end with the floating layout.

The simplest way to achieve that is by creating the state adjustment
with the correct value in the first place.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1353

js/ui/workspace.js

@@ -411,7 +411,7 @@ var WorkspaceLayout = GObject.registerClass({
         this._layout = null;
 
         this._stateAdjustment = new St.Adjustment({
-            value: 1,
+            value: 0,
             lower: 0,
             upper: 1,
         });
@@ -1135,7 +1135,6 @@ class Workspace extends St.Widget {
             this.metaWorkspace === null || this.metaWorkspace.active;
 
         const adj = this.layout_manager.stateAdjustment;
-        adj.value = 0;
         adj.ease(1, {
             duration: animate ? Overview.ANIMATION_TIME : 0,
             mode: Clutter.AnimationMode.EASE_OUT_QUAD,