doc: make Stability labels not sticky in Stability index

PR-URL: #58291
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Dario Piotrowicz <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Ulises Gascón <[email protected]>
Reviewed-By: Tierney Cyren <[email protected]>

Author: LiviaMedeiros

doc/api_assets/style.css

@@ -299,6 +299,10 @@ li.picker-header a span {
   z-index: 1;
 }
 
+#api-section-documentation .api_stability {
+  position: static;
+}
+
 .api_stability * {
   color: var(--white) !important;
 }