fix: increase tree glyph stroke weight

site/tests/landing-glyphs.test.mjs

@@ -20,7 +20,8 @@ test('pinned font binaries and upstream licenses match their integrity manifest'
 
 test('Lyth Mono paths retain exact advance, row bounds and stroke dimensions', () => {
   close(cellWidth, 8.456);
-  close(stemWidth, 1.064);
+  close(stemWidth, 1.064 * 1.25);
+  close(branchThickness, (68 / 1170) * 24 * 1.25);
   close(branchY, rowHeight / 2);
   const vertical = box(glyphPath('│'));
   close(vertical.y1, 0);
@@ -31,6 +32,17 @@ test('Lyth Mono paths retain exact advance, row bounds and stroke dimensions', (
   close(horizontal.x1, 0);
   close(horizontal.x2, cellWidth);
   close(horizontal.y2 - horizontal.y1, branchThickness);
+  close((horizontal.y1 + horizontal.y2) / 2, branchY);
+  const tee = box(glyphPath('├'));
+  close(tee.x1, cellWidth / 2 - stemWidth / 2);
+  close(tee.x2, cellWidth);
+  close(tee.y1, 0);
+  close(tee.y2, rowHeight);
+  const elbow = box(glyphPath('└'));
+  close(elbow.x1, tee.x1);
+  close(elbow.x2, cellWidth);
+  close(elbow.y1, 0);
+  close(elbow.y2, branchY + branchThickness / 2);
   const trunk = box(trunkPath);
   close(trunk.x1 + trunk.x2, 0);
   close(trunk.x2 - trunk.x1, stemWidth);