Continue row: first line of the content, only on the plain overview

The row now sits below the search, filters and tags, directly above the
grid. It hides while a search is typed or a status filter is set (as well
as on "Recently read"); tags and collection grouping keep it.

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

public/settings.js

@@ -93,7 +93,7 @@
   section('user/reading').append(h('section', { class: 'card' },
     h('h2', {}, 'Library page'),
     check('continueRow', 'Show "Continue where you left off" at the top',
-      'One row with the five manga you read most recently and have not finished. It hides itself while the library is sorted by "Recently read".')));
+      'One row with the five manga you read most recently and have not finished. It hides itself while you search, filter by status, or sort by "Recently read".')));
 
   section('user/reading').append(h('section', { class: 'card' },
     h('h2', {}, 'Chapter list dates'),