chore: remove trailing slashes from URLs

source/sitemap.xml.twig

@@ -8,27 +8,27 @@ use:
 <?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <url>
-    <loc>{{ site.url }}</loc>
+    <loc>{{ site.url|trim('/', 'right') }}</loc>
     <priority>0.8</priority>
   </url>
 
   {% for page in data.pages if not page.exclude_from_sitemap %}
       <url>
-        <loc>{{ site.url }}{{ page.url }}</loc>
+        <loc>{{ site.url }}{{ page.url|trim('/', 'right') }}</loc>
         <priority>0.8</priority>
       </url>
   {% endfor %}
 
   {% for post in data.posts %}
   <url>
-    <loc>{{ site.url }}{{ post.url }}</loc>
+    <loc>{{ site.url }}{{ post.url|trim('/', 'right') }}</loc>
     <priority>1.0</priority>
   </url>
   {% endfor %}
 
   {% for talk in data.talks if not talk.hide_page %}
   <url>
-    <loc>{{ site.url }}{{ talk.url }}</loc>
+    <loc>{{ site.url }}{{ talk.url|trim('/', 'right') }}</loc>
     <priority>1.0</priority>
   </url>
   {% endfor %}