feat: Optimized sitemap lastmod generation and fixed page title

_layouts/default.html

@@ -6,7 +6,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <meta http-equiv="X-UA-Compatible" content="IE=edge" />
         <meta name="turbolinks-root" content="{{site.baseurl}}/">
-        <title>{{ page.page_title | page.title }} - {{ site.product }}</title>
+        <title>{{ page.page_title | default: page.title }} - {{ site.product }}</title>
         <meta name="description" content="{{ page.description }}" />
         {% if page.res_type %}<meta name="restype" content="{{ page.res_type }}">{% else %}<meta name="restype" content="documentation">{% endif %}
         <link rel="shortcut icon" href="{{site.baseurl}}/favicon.ico"/>

_plugins/timestamp.rb

@@ -1,6 +1,7 @@
 class TimeStampTag < Liquid::Block
     def initialize(tag_name, markup, tokens)
         @text = markup
+        @@today_date = Date.today.to_s
         super
     end
 
@@ -8,7 +9,8 @@ class TimeStampTag < Liquid::Block
         contents = super
         content = Liquid::Template.parse(contents).render context
 		   # aim for YYYY-MM-DD format https://www.google.com/sitemaps/protocol.html#lastmoddef
-       `git log -1 --format=%cd --date=short #{content}`.strip
+       #`git log -1 --format=%cd --date=short #{content}`.strip
+       @@today_date
     end
 end