The way down the tree is the link at the foot, not an arrow that follows

0.5.3 put the same link in two places: in words at the foot of the
page, and as an arrow fixed at the left edge half-way up the screen.
The arrow stayed with the reader the whole way down a page to offer
what the foot offers where they end up anyway. It is removed; the foot
link and where it leads are unchanged.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt

src/app.rs

@@ -477,7 +477,7 @@ fn QuestionView(
 /// Every other question the visitor currently qualifies for, as a
 /// small nav - how a concern reaches the people it speaks to without
 /// claiming front-page space (an owner also sees the gated desks here).
-/// Where the arrow on the left takes a visitor: the nearest page below
+/// Where the link at the foot of a page takes a visitor: the nearest page below
 /// the current one in the tree that they may open, found by taking the
 /// path apart one segment at a time (`/a/b/c`, then `/a/b`, then `/a`),
 /// and the front door when none of those is a page. `None` on the front
@@ -523,24 +523,10 @@ fn QuestionNav(current_id: String) -> impl IntoView {
     let NavRes(nav) = expect_context();
     let location = leptos_router::hooks::use_location();
     view! {
-        // The way down the tree: fixed at the left edge, half-way up the
-        // screen, small enough never to cover what a visitor is reading.
-        // It replaces a "back" alternative on every page that had one.
-        <Suspense fallback=|| ()>
-            {move || {
-                let path = location.pathname.get();
-                nav.get().and_then(|res| res.ok()).and_then(|items| down_the_tree(&path, &items)).map(|(href, name)| {
-                    let label = down_the_tree_label(&lang().get(), &href, &name);
-                    view! {
-                        <a class="down-the-tree" href=href aria-label=label.clone() title=label>
-                            <svg viewBox="0 0 24 24" aria-hidden="true"><path d="M15 5 8 12l7 7" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" stroke-linejoin="round"/></svg>
-                        </a>
-                    }
-                })
-            }}
-        </Suspense>
-        // The same way down, at the foot of the page, in words: where a
-        // reader who has read to the end looks for where to go next.
+        // The way down the tree, at the foot of the page, in words:
+        // where a reader who has read to the end looks for where to go
+        // next. It replaces a "back" alternative on every page that had
+        // one.
         <Suspense fallback=|| ()>
             {move || {
                 let path = location.pathname.get();