ui: the bottom bar's comment lists Fast Previews where it is drawn

Co-Authored-By: DeepSeek V4.1 Flash <noreply@deepseek.com>

crates/ui-egui/src/panels/viewer_tools.rs

@@ -669,8 +669,8 @@ pub(crate) fn resolution_label(res: Resolution, scale: f64) -> String {
 }
 
 /// The Composition panel's bottom bar, in After Effects 2026 order: magnification, resolution,
-/// transparency grid, mask and shape path visibility, region of interest, grid and guide
-/// options, show channel, reset exposure, exposure, take / show snapshot, Fast Previews, the 3D
+/// Fast Previews, transparency grid, mask and shape path visibility, region of interest, grid and
+/// guide options, show channel, reset exposure, exposure, take / show snapshot, the 3D
 /// renderer and view, and the current time.
 pub(crate) fn bottom_bar(app: &mut EffectcraftApp, ui: &mut egui::Ui, bar: Rect, zoom: f32, time: Tick, comp: &Comp) {
     let t = app.tokens;
@@ -721,7 +721,8 @@ fn exposure_field(app: &mut EffectcraftApp, ui: &mut egui::Ui, er: Rect, stops:
     }
 }
 
-/// Lay out the viewer's control row from `bar.min.x`: magnification, resolution, transparency, mask, ROI, grid/guide,
+/// Lay out the viewer's control row from `bar.min.x`: magnification, resolution, Fast Previews,
+/// transparency, mask, ROI, grid/guide,
 /// channel/colour management, exposure, snapshot, fast previews, 3D renderer/view and Extended Viewer, timecode and render-time
 /// indicators, running commands or toggling viewer UI state. Returns the width the row
 /// occupies, at least `bar.width()`, for the horizontal scroll area.