fix(astro-menu): clip card bloom so corners stop poking out of the rounded border

bordered()'s glow re-strokes the rounded ring at widths up to border+22, so half
of each stroke falls outside the ring path. GTK clips a DrawingArea to its own
square allocation: along the straight edges that trims the outward spill to
nothing, but inside each corner the square patch between the arc and the widget
corner is still in-allocation and got painted solid accent red — square corners
peeking out from behind every rounded card border.

Clip the glow passes to the ring's outer silhouette (the widget rect rounded by
radius + border/2, exactly where the crisp stroke's outer edge runs) so the
bloom only reads inward. Crisp stroke and fill are unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

desktopenvs/hyprdrive/astro-menu/lib/border.py

@@ -49,11 +49,24 @@ def _make_draw(border: int, radius: int, color, fill_bg: bool, glow: bool):
         inset = border / 2
         r, g, b = color
         if glow:
+            # The bloom strokes are up to 24px wide, so half of each spills OUTWARD
+            # past the ring. GTK clips a DrawingArea to its own (square) allocation,
+            # which along the straight edges trims that spill to nothing but inside
+            # each corner leaves the whole square patch outside the arc painted —
+            # solid red corners poking out from behind the rounded border. Clip the
+            # glow to the ring's own outer silhouette (the widget rect rounded by
+            # radius + inset, i.e. exactly where the crisp stroke's outer edge runs)
+            # so the bloom only ever reads inward and the card keeps a clean rounded
+            # outline.
+            cr.save()
+            _rounded_rect(cr, 0, 0, w, h, radius + inset)
+            cr.clip()
             for extra_w, alpha in _GLOW_LAYERS:
                 _rounded_rect(cr, inset, inset, w - border, h - border, radius)
                 cr.set_source_rgba(r, g, b, alpha)
                 cr.set_line_width(border + extra_w)
                 cr.stroke()
+            cr.restore()
         _rounded_rect(cr, inset, inset, w - border, h - border, radius)
         if fill_bg:
             cr.set_source_rgba(*FILL_COLOR, FILL_ALPHA)