Function render_list 

pub fn render_list(
    f: &mut Frame<'_>,
    area: Rect,
    title: &str,
    shortcut: Option<u8>,
    items: &[ListItem],
    state: &mut ListState,
    focused: bool,
    theme: &Theme,
)

Render a scrollable, focusable list inside area.

• Uses focusable_block for the outer border.
• The selected row is highlighted with Theme::selection.
• primary text is left-aligned using Theme::body.
• secondary text is right-aligned using Theme::hint.
• Handles an empty items slice without panicking.