style: vertically center headlines in the bottom box

Made-with: Cursor

src/cover.py

@@ -80,7 +80,7 @@ def _draw_text_overlays(
             [(0, strip_top), (width, height)], fill=(0, 0, 0, 170)
         )
         max_width = width - 32
-        y = strip_top + 8
+        y = strip_top + 14
         for headline in headlines[:max_headlines]:
             text = f"\u2022 {headline}"
             text = _truncate_to_width(text, headline_font, max_width)