docs(nav): restoreNavPosition's doc back on restoreNavPosition

frontend/src/lib/listNav.ts

@@ -358,14 +358,9 @@ export function navPosition(): NavPosition | null {
 const RESTORE_MS = 2000;
 const RESTORE_POLL_MS = 50;
 
-/** Focus the item at `pos` once its list is on screen again. A NAMED list (a rail) is found by its
- *  name: a rail that appeared above it in the meantime — "Continue watching", filled by the very title
- *  watched in between, after the page's cache expired — shifts every place after it, and matching by
- *  place landed the focus in the wrong rail (deep-review E11 round 2). An unnamed list only by its
- *  place, and only once the page has exactly as many lists as when it was left: with more or fewer,
- *  list N may be another list, and <body> is the honest outcome. Gives up when the time is up, and at
- *  once when focus is already somewhere (the reader moved on, a dialog took it). The item is focused
- *  where the scroll restore put it, never scrolled to. Returns a cancel. */
+/** The item in `list` to hand the focus back to: the saved place while it still holds the saved
+ *  name, else the nearest item of that name (names repeat — a log console's identical request
+ *  lines), else the saved place. */
 function restoreTarget(list: NavList, pos: NavPosition): HTMLElement | null {
   const at = itemAt(list, pos.index);
   if (!pos.name || (at && itemName(at) === pos.name)) return at;
@@ -376,6 +371,14 @@ function restoreTarget(list: NavList, pos: NavPosition): HTMLElement | null {
   return named[0] ?? at;
 }
 
+/** Focus the item at `pos` once its list is on screen again. A NAMED list (a rail) is found by its
+ *  name: a rail that appeared above it in the meantime — "Continue watching", filled by the very title
+ *  watched in between, after the page's cache expired — shifts every place after it, and matching by
+ *  place landed the focus in the wrong rail (deep-review E11 round 2). An unnamed list only by its
+ *  place, and only once the page has exactly as many lists as when it was left: with more or fewer,
+ *  list N may be another list, and <body> is the honest outcome. Gives up when the time is up, and at
+ *  once when focus is already somewhere (the reader moved on, a dialog took it). The item is focused
+ *  where the scroll restore put it, never scrolled to. Returns a cancel. */
 export function restoreNavPosition(pos: NavPosition): () => void {
   const deadline = Date.now() + RESTORE_MS;
   let timer: ReturnType<typeof setTimeout> | undefined;