fix: weird scroll-in-scroll when navigating to bottom of outline

Author: carsakiller

src/layouts/WikiArticle.astro

@@ -240,8 +240,8 @@ export interface Props {
   aside.sidebar {
     --sidebar-width: 20em;
     background-color: #081f34;
-    height: 100%;
     position: fixed;
+    padding-bottom: 1em;
     top: 3.5em;
     width: var(--sidebar-width);
     z-index: 25;