fix: add *.avif to Caddy static cache matcher

PageSpeed Insights flagged AVIF files as uncached because the
@static matcher only included *.webp. Adding *.avif enables
1-year Cache-Control for all AVIF assets.

Caddyfile.example

@@ -60,7 +60,7 @@ sync.koalastuff.net {
     # Static Caching for high-performance PageSpeed (1 year with validation)
     @static {
         file
-        path *.ico *.css *.js *.png *.svg *.webp
+        path *.ico *.css *.js *.png *.svg *.webp *.avif
     }
     header @static Cache-Control "public, max-age=31536000, must-revalidate"
 

website/template.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>
 

website/www/de/index.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>
 

website/www/es/index.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>
 

website/www/fr/index.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>
 

website/www/index.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>
 

website/www/pt-BR/index.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>
 

website/www/ru/index.html

@@ -1060,7 +1060,7 @@
     <span class="t-comment"># Static Caching for high performance</span>
     <span class="t-key">@static</span> {
         <span class="t-key">file</span>
-        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp</span>
+        <span class="t-key">path</span> <span class="t-str">*.ico *.css *.js *.png *.svg *.webp *.avif</span>
     }
     <span class="t-key">header</span> <span class="t-val">@static</span> Cache-Control <span class="t-str">"public, max-age=31536000, must-revalidate"</span>