Refresh Story Bible reference ranges when the header folds or unfolds

Folding/unfolding the header moves the frontmatter in or out of
`buffer`, shifting every char offset into it, but after_view_change()
never recomputed current_references — so the cached ranges stayed
pointing at pre-toggle positions and highlights landed on unrelated
words. Recompute them alongside the other view-state invalidations it
already does.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/file_list.rs

@@ -415,13 +415,32 @@ impl App {
                                                 + if show_tag { tag_w } else { 0.0 };
                                             let name_w =
                                                 (row_width - indent - trailing).max(0.0);
+                                            // `add_sized` centers a widget
+                                            // smaller than the box it's given
+                                            // — fine for a fixed-width badge,
+                                            // but it let a short folder name
+                                            // drift away from the indent that
+                                            // was just drawn for it, and
+                                            // further than its own deeper
+                                            // children whose names fill more
+                                            // of their (narrower) box. Pinning
+                                            // `main_align` to the start keeps
+                                            // the name anchored right after
+                                            // the indent regardless of length.
                                             let button_response = ui
-                                                .add_sized(
+                                                .allocate_ui_with_layout(
-                                                    [name_w, 20.0],
+                                                    egui::vec2(name_w, 20.0),
+                                                    egui::Layout::left_to_right(egui::Align::Center)
+                                                        .with_main_align(egui::Align::Min),
+                                                    |ui| {
+                                                        ui.add(
                                                             egui::Button::new(text)
                                                                 .frame(false)
                                                                 .truncate(),
                                                         )
+                                                    },
+                                                )
+                                                .inner
                                                 .on_hover_text(&row.path);
                                             
                                             if button_response.clicked() {
@@ -563,16 +582,29 @@ impl App {
                                             // file name simply spills out of the
                                             // panel. The wrap mode is what it
                                             // actually reads.
+                                            //
+                                            // `add_sized` also *centers* a
+                                            // widget narrower than the box
+                                            // it's given, which drifted short
+                                            // file names away from the indent
+                                            // just like folder names did —
+                                            // `with_main_align(Min)` pins it
+                                            // to the start instead.
                                             let mut label = ui
                                                 .scope(|ui| {
                                                     ui.style_mut().wrap_mode =
                                                         Some(egui::TextWrapMode::Truncate);
-                                                    ui.add_sized(
+                                                    ui.allocate_ui_with_layout(
-                                                        [label_w, 20.0],
+                                                        egui::vec2(label_w, 20.0),
-                                                        egui::SelectableLabel::new(
+                                                        egui::Layout::left_to_right(egui::Align::Center)
+                                                            .with_main_align(egui::Align::Min),
+                                                        |ui| {
+                                                            ui.add(egui::SelectableLabel::new(
                                                                 selected, text,
-                                                        ),
+                                                            ))
+                                                        },
                                                     )
+                                                    .inner
                                                 })
                                                 .inner;
                                             if let Some(tooltip) = &tooltip {

src/app/workspace.rs

@@ -541,6 +541,11 @@ impl App {
         self.spell_menu = None;
         self.clear_lt();
         self.autocomplete = None;
+        // Story Bible reference ranges are char offsets into `buffer` too —
+        // stale ones (from before the header moved in or out) land on
+        // whatever text now happens to sit `header.len()` characters away
+        // from the real mention.
+        self.update_current_references();
     }
 
     /// How many header fields are hidden right now, for the toggle's label.