PixelPaint: Correct move tool alignment with the layer boundary

Previously, the move tool outline could "wobble" relative to the layer
boundary. This caused the layer boundary to appear and disappear when
zooming. With this commit, the layer boundary is always drawn behind
the move tool outline.

Userland/Applications/PixelPaint/Tools/MoveTool.cpp

@@ -195,7 +195,7 @@ void MoveTool::on_second_paint(Layer const* layer, GUI::PaintEvent& event)
     GUI::Painter painter(*m_editor);
     painter.add_clip_rect(event.rect());
     auto content_rect = m_scaling ? m_new_layer_rect : m_editor->active_layer()->relative_rect();
-    auto rect_in_editor = m_editor->content_to_frame_rect(content_rect).to_rounded<int>();
+    auto rect_in_editor = m_editor->content_to_frame_rect(content_rect).to_type<int>();
     if (m_scaling && (!m_cached_preview_bitmap.is_null() || !update_cached_preview_bitmap(layer).is_error())) {
         Gfx::PainterStateSaver saver(painter);
         painter.add_clip_rect(m_editor->content_rect());
@@ -255,7 +255,7 @@ ErrorOr<void> MoveTool::update_cached_preview_bitmap(Layer const* layer)
 
 Optional<ResizeAnchorLocation const> MoveTool::resize_anchor_location_from_cursor_position(Layer const* layer, MouseEvent& event)
 {
-    auto layer_rect = m_editor->content_to_frame_rect(layer->relative_rect()).to_rounded<int>();
+    auto layer_rect = m_editor->content_to_frame_rect(layer->relative_rect()).to_type<int>();
     auto size = max(resize_anchor_min_size, resize_anchor_size(layer_rect));
 
     auto cursor_within_resize_anchor_rect = [&event, size](Gfx::IntPoint layer_position_in_frame_coordinates) {