feat(alerts): the whole rule row opens the rule (#5214)

The name's link stretches over its row (.row-link / .row-target); the
History and Disable buttons sit above it and keep their own clicks.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

steward/static/steward.css

@@ -210,6 +210,12 @@ strong, b, th { font-weight: 500; }
 /* The Docker page's one-line answer, above its tiles (#5298). */
 .page-verdict { margin: 0 0 0.75rem; font-size: 0.95rem; }
 .table tr.row-off > td { opacity: 0.55; }
+/* A row that opens as a whole: its one .row-target link stretches over the
+   row, and the actions cell sits above it so its buttons keep their own
+   clicks. One real link per row, so keyboard and screen readers meet it once. */
+.table tr.row-link { position: relative; cursor: pointer; }
+.table tr.row-link .row-target::after { content: ""; position: absolute; inset: 0; }
+.table tr.row-link .td-actions { position: relative; z-index: 1; cursor: auto; }
 .table td.nowrap { white-space: nowrap; }
 .cell-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.2rem; }
 /* An alert episode's own transitions, folded under it (#5316). */