Add hostname to NixOS title and make dashboard title bold

- Change system panel title from 'NixOS:' to 'NixOS hostname:'
- Make main dashboard title 'cm-dashboard' bold in top bar
- Remove unused Typography::title() function to fix warnings
- Update SystemWidget::render_with_scroll to accept hostname parameter
- Update version to 0.1.41 in all Cargo.toml files and dashboard code

dashboard/src/ui/mod.rs

@@ -568,7 +568,7 @@ ssh -tt {}@{} 'bash -ic {}'",
         // Left side: "cm-dashboard" text
         let left_span = Span::styled(
             " cm-dashboard", 
-            Style::default().fg(Theme::background()).bg(background_color)
+            Style::default().fg(Theme::background()).bg(background_color).add_modifier(Modifier::BOLD)
         );
         let left_title = Paragraph::new(Line::from(vec![left_span]))
             .style(Style::default().bg(background_color));
@@ -708,7 +708,7 @@ ssh -tt {}@{} 'bash -ic {}'",
                 host_widgets.system_scroll_offset
             };
             let host_widgets = self.get_or_create_host_widgets(&hostname);
-            host_widgets.system_widget.render_with_scroll(frame, inner_area, scroll_offset);
+            host_widgets.system_widget.render_with_scroll(frame, inner_area, scroll_offset, &hostname);
         }
     }