badge: trim the height-fix comment

frontend/packages/shared/src/badge/Badge.css

@@ -90,17 +90,7 @@
 }
 .ui-badge-value {
   color: var(--fg);
-  /* mara: "thinking badge size is bigger for some reason" — several
-     badges fold a leading glyph straight into their value text
-     (STATE_LABELS' emoji, the pause/resume "⏸"/"▶"), and an emoji's
-     (or its tofu fallback's) own line-box commonly exceeds the
-     surrounding text's `line-height: 1.4` in most fonts, inflating
-     just that badge's height against its siblings. A tight
-     `line-height: 1` on the value span forces every badge back to the
-     same box regardless of which glyph a specific state happens to
-     carry — verified with a real headless-chromium repro of the exact
-     "thinking"/"pause" mismatch from her screenshot, both before and
-     after. */
+  /* Fixes badge with emoji having different size. */
   line-height: 1;
 }
 .ui-badge-caret {