style: reformat code and cleanup whitespace

Reformat code for improved readability and remove unnecessary whitespace.

Co-Authored-By: fiddlerwoaroof/git-smart-commit (gemma-4-26B-A4B-it-UD-Q5_K_XL.gguf)

src/draw.rs

@@ -246,8 +246,11 @@ fn draw_content(f: &mut Frame, area: Rect, app: &App) {
         }
         if app.category_panel_open {
             let a = Rect::new(side.x, y, side.width, ph);
-            let content =
-                CategoryContent::new(&app.workbook.model, app.workbook.active_view(), &app.expanded_cats);
+            let content = CategoryContent::new(
+                &app.workbook.model,
+                app.workbook.active_view(),
+                &app.expanded_cats,
+            );
             f.render_widget(Panel::new(content, &app.mode, app.cat_panel_cursor), a);
             y += ph;
         }