start migration to bundle format

lib/main.typ

@@ -1,7 +1,8 @@
 #import "./html_head.typ": html-head
 #import "./html_body.typ": html-body
-#import "./html_utils.typ": html-show
+#import "./html_utils.typ": html-show, reset-page-states
 #import "./summary.typ": summary, card-list
+#import "./states.typ": current-page-label
 #import "./pyscript.typ": state-use-pyscript, state-pyscript-data-list, state-pyscript-version, state-pyscript-interpreters, state-pyscript-default-interpreter, pyscript-show, pyscript-data
 #import "./rss.typ": rss
 #import "./icons.typ"
@@ -9,8 +10,10 @@
 
 /// Mail template function
 #let webpage(
-  /// Page url
-  url: none,
+  /// The base url of the site (eg: "http://test.example.com")
+  base-url: none,
+  /// The url path of the page (full url of the page is base-url + path), eg: "/index.html"
+  path: none,
   /// Title of the page, default to document.title
   title: none,
   /// Use only for html 'lang' attribute.
@@ -32,6 +35,8 @@
   stylesheets: (),
   /// List of related sites for metadata
   me-links: (),
+  /// Label of the page (for links)
+  page-label: none,
   /// Dictionnary of available pyscript-data for each versions of pyscript
   ///   expected in the form of ("<version>": pyscript-data-list("<url>", { html.link(...) }), ...)
   pyscript-data-list: (:),
@@ -56,7 +61,9 @@
   /// Body of the page
   body
 ) = {
-  assert(type(url) == str, message: "A page must have an url")
+  assert(type(base-url) == str, message: "A page must have a base url")
+  assert(type(path) == str, message: "A page must have a path")
+
   context {
     state-pyscript-data-list.update(x => pyscript-data-list)
     state-pyscript-interpreters.update(x => pyscript-interpreters)
@@ -65,10 +72,13 @@
   }
   show: html-show
   show raw.where(block: true, lang: "python-run"): pyscript-show
+  current-page-label.update(x => page-label)
   html.html(lang: lang, {
     html-head(
-      url,
+      base-url,
+      path,
       title,
+      page-label,
       icon: icon,
       og-type: og-type,
       site-name: site-name,
@@ -84,7 +94,11 @@
       footer: footer,
       nav-elements: nav-elements,
       menu: menu,
-      body
+      [
+        #body
+        #metadata("end of page " + str(page-label)) #label(str(page-label) + "-end")
+      ]
     )
+    reset-page-states()
   })
 }