sweep the last typographic punctuation out of the components and data files

src/components/SkillGroup.astro

@@ -1,5 +1,5 @@
 ---
-// One bento tile in the capabilities grid — size/flavour driven by the data
+// One bento tile in the capabilities grid - size/flavour driven by the data
 // (span: hero 2×2 flagship · wide 2×1 · full row · default 1×1).
 import type { SkillGroup } from "../data/skills";
 
@@ -181,7 +181,7 @@ const spanClass =
     padding: 5px 10px;
   }
 
-  /* Below 1000px the parent grid is only 2 columns — so the multi-column spans
+  /* Below 1000px the parent grid is only 2 columns - so the multi-column spans
      must collapse to full-width HERE, not at 720px. A `span 3` tile left active
      in a 2-col grid forces a phantom 3rd column and collapses the 1fr tracks
      (58px 58px 760px), squishing the first tile to ~130px in landscape phone. */