Function render_progress_bars 

pub fn render_progress_bars(
    ctx: &Context,
    snapshot: &ProgressBarSnapshot,
    config: &Config,
    window_width: f32,
    window_height: f32,
    top_inset: f32,
    bottom_inset: f32,
)

Render progress bar overlays using egui.

top_inset and bottom_inset specify reserved UI areas (e.g. tab bar, status bar) that progress bars should not overlap with.