fix: logo and banner were not visible in sub pages

app/views/header.htm

 <check if="{{ @logo }}">
     <true>
     <a href="{{ @SITE_URL }}/"><h1>
-        <img src="{{ @logo }}" alt="{{ @title }}" />
+        <img src="/{{ @logo }}" alt="{{ @title }}" />
         </h1></a>
     </true>
     <false>
 
 <check if="{{ @banner }}">
     <true>
-    <div id="site-banner"><img src="{{ @banner }}" alt="{{ @subTitle }}" /></div>
+    <div id="site-banner"><img src="/{{ @banner }}" alt="{{ @subTitle }}" /></div>
     </true>
 </check>
 

app/views/header2.htm

 <check if="{{ @logo }}">
     <true>
     <a href="{{ @SITE_URL }}/"><h1>
-        <img src="{{ @logo }}" alt="{{ @title }}" />
+        <img src="/{{ @logo }}" alt="{{ @title }}" />
         </h1></a>
     </true>
     <false>
 
 <check if="{{ @banner }}">
     <true>
-    <div id="site-banner"><img src="{{ @banner }}" alt="{{ @subTitle }}" /></div>
+    <div id="site-banner"><img src="/{{ @banner }}" alt="{{ @subTitle }}" /></div>
     </true>
 </check>