chore: deduplicate permalinks; fix sitemap; organize

src/pages/main/watching/show.html

@@ -4,7 +4,7 @@ pagination:
   data: tv.shows
   size: 1
   alias: show
-permalink: /watching/shows/{{ show.tmdb_id }}/index.html
+permalink: "{{ show.url }}/index.html"
 schema: show
 ---
 {%- capture alt -%}
@@ -38,6 +38,8 @@ schema: show
     <p class="sub-meta"><a href="https://themoviedb.org/tv/{{ show.tmdb_id }}" title="View {{ show.title | escape }} on TMDB">View on TMDB</a></p>
   </div>
   {% if show.review %}
+    {% render "partials/blocks/banners/warning.liquid", text: "There are probably spoilers after this banner — this is a warning about them." %}
+    <h3>My thoughts</h3>
     {{ show.review | markdown }}
     <hr />
   {% endif %}