♻️ refactor(header): replace single %22 by `"`

Single quotation marks already escape the double ones.

templates/partials/header.html

@@ -10,7 +10,7 @@
         <link rel="icon" type="image/png" href="{{ get_url(path=config.extra.favicon) }}"/>
     {% endif %}
     {% if config.extra.favicon_emoji %}
-        <link rel=icon href='data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg" viewBox="0 0 105 55"><text y=".7em" font-size="90">{{ config.extra.favicon_emoji }}</text></svg>'>
+        <link rel=icon href='data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 105 55"><text y=".7em" font-size="90">{{ config.extra.favicon_emoji }}</text></svg>'>
     {% endif %}
 
     {# Feed #}