Hide "support pantsu"" if announcement is there (#1340)

* add no-center class if announcement exist

* add no-center class that hides .no-center > center

* Update index_site.jet.html

public/css/main.css

@@ -71,6 +71,7 @@ body {
     position: relative;
     z-index: 2;
 }
+.no-center > center { display: none; }
 
 .header .container {
     position: relative;

templates/layouts/index_site.jet.html

@@ -12,9 +12,9 @@
 {{ block content_body_base()}}
     {{ if isset(Infos["system"])}}
         {{ range Infos["system"]}}
-            <div id="announce"><span style="font-weight:bold;">{{T("announcement")}}</span><br>{{ . }}</div>
+            <div id="announce"><span style="font-weight:bold;">{{T("announcement")}}</span><br>{{ .|raw }}</div>
         {{ end }}
     {{ end }}
 {{ yield search_refine(url=URL.Parse("/search")) }}
 {{ block content_body()}}{{end}}
-{{end}}
+{{end}}

templates/layouts/partials/base.jet.html

@@ -47,7 +47,7 @@
   <nav id="header" class="header">
     {{block menu()}}{{end}}
   </nav>
-  <div id="content" class="{{ block contclass() }}{{end}}">
+  <div id="content" class="{{ block contclass() }}{{end}}{{if isset(Infos["system"])}} no-center{{end}}">
     <div class="content container center">
       {{ yield infos()}}
       {{ yield errors()}}