Add French and English pricing pages, update site configuration and layouts

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

layouts/_default/single.html

@@ -1,10 +1,6 @@
 {{ define "main" }}
-<div class="hero">
-    <h1>{{ .Title }}</h1>
-    <p>{{ .Params.subtitle }}</p>
-</div>
 
-<div class="content">
+<div class="content my-5">
     {{ .Content }}
 </div>
-{{ end }}
+{{ end }}