[web] Docs 3-column layout, move ogstools link.

web/config/_default/config.toml

@@ -153,6 +153,7 @@ category = "Developer"
 name = "Python tools"
 url = "https://ogstools.opengeosys.org/stable/"
 post = "<em>ogstools</em> is a collection of Python tools aimed at evolving into a modeling toolchain around OpenGeoSys."
+weight = 4
 [menu.docs.params]
 category = "User"
 

web/layouts/docs/list.html

@@ -11,9 +11,8 @@
   </div>
   <div class="flex flex-wrap -m-4 p-4">
 
-    {{ $num_entries := (where $.Site.Menus.docs "Params.category" .) | len }}
     {{ range where $.Site.Menus.docs "Params.category" . }}
-    <div class="xl:w-1/{{$num_entries}} md:w-1/2 mt-2 px-4 py-2 md:p-4">
+    <div class="xl:w-1/3 md:w-1/2 mt-2 px-4 py-2 md:p-4">
       <a href="{{ .URL }}">
         <div class="p-4 bg-gray-100 hover:bg-white rounded-lg shadow h-full">
           <h3 class="text-xl mb-2 border-b text-blue-800">