Issue #3323850 by heddn, karishmaamin, catch, Luke.Leber, smustgrave, pmeenan: Set theme logo fetchpriority to high

core/modules/system/templates/block--system-branding-block.html.twig

@@ -18,7 +18,7 @@
 {% block content %}
   {% if site_logo %}
     <a href="{{ path('<front>') }}" rel="home">
-      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" />
+      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" fetchpriority="high" />
     </a>
   {% endif %}
   {% if site_name %}

core/themes/claro/templates/classy/block/block--system-branding-block.html.twig

@@ -16,7 +16,7 @@
 {% block content %}
   {% if site_logo %}
     <a href="{{ path('<front>') }}" rel="home" class="site-logo">
-      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" />
+      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" fetchpriority="high" />
     </a>
   {% endif %}
   {% if site_name %}

core/themes/olivero/templates/block/block--system-branding-block.html.twig

@@ -18,7 +18,7 @@
   <div class="site-branding__inner">
     {% if site_logo %}
       <a href="{{ path('<front>') }}" rel="home" class="site-branding__logo">
-        <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" />
+        <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" fetchpriority="high" />
       </a>
     {% endif %}
     {% if site_name %}

core/themes/stable9/templates/block/block--system-branding-block.html.twig

@@ -16,7 +16,7 @@
 {% block content %}
   {% if site_logo %}
     <a href="{{ path('<front>') }}" rel="home">
-      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" />
+      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" fetchpriority="high" />
     </a>
   {% endif %}
   {% if site_name %}

core/themes/starterkit_theme/templates/block/block--system-branding-block.html.twig

@@ -16,7 +16,7 @@
 {% block content %}
   {% if site_logo %}
     <a href="{{ path('<front>') }}" rel="home" class="site-logo">
-      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" />
+      <img src="{{ site_logo }}" alt="{{ 'Home'|t }}" fetchpriority="high" />
     </a>
   {% endif %}
   {% if site_name %}