Dequalify WindowContext and ViewContext references (#22477)

Release Notes:

- N/A

crates/workspace/src/pane_group.rs

@@ -1018,7 +1018,7 @@ mod element {
         fn request_layout(
             &mut self,
             _global_id: Option<&GlobalElementId>,
-            cx: &mut ui::prelude::WindowContext,
+            cx: &mut WindowContext,
         ) -> (gpui::LayoutId, Self::RequestLayoutState) {
             let style = Style {
                 flex_grow: 1.,
@@ -1119,7 +1119,7 @@ mod element {
             bounds: gpui::Bounds<ui::prelude::Pixels>,
             _: &mut Self::RequestLayoutState,
             layout: &mut Self::PrepaintState,
-            cx: &mut ui::prelude::WindowContext,
+            cx: &mut WindowContext,
         ) {
             for child in &mut layout.children {
                 child.element.paint(cx);