fix(ui): render detail popup labels in bold

Span::style assigns rather than patches, so chaining it after bold()
discarded the modifier that bold() had just set and every detail popup
label rendered plain. Apply the modifier to the style itself instead.

Snapshots compare rendered text and cannot observe styling, so this is
pinned by asserting the label span's modifier directly.

src/ui/radarr_ui/library/movie_details_ui.rs

@@ -204,7 +204,7 @@ fn draw_movie_details(f: &mut Frame<'_>, app: &App<'_>, area: Rect) {
             let style = style_from_download_status(download_status, is_monitored, status.clone());
 
             Line::from(vec![
-              title.bold().style(style),
+              Span::styled(title, style.bold()),
               Span::styled(split[1..].join(":"), style),
             ])
           })