Complete website rewrite

This PR replaces the current CMS website with a static version of it built using Jekyll.

- Everything should be working 1 to 1 with the same permalinks except for the `/news` page (not articles) which was renamed as `/blog` (old links will redirect to new ones).
- The showcase entries on the home page now redirect to their showcase page in our site so that the user can choose which store front or page to visit next.
- I also changed the first link from the nav bar to go to the showcase page since the features one is still pretty outdated.

Co-authored-by: Yuri Sizov <yuris@humnom.net>

_config.yml

@@ -0,0 +1,96 @@
+# Settings
+exclude: [".github", "Gemfile", "Gemfile.lock", "build.sh", "build-and-serve.sh", "README.md"]
+permalink: pretty
+
+collections_dir: collections
+collections:
+  article:
+    output: true
+  showcase:
+    output: true
+  download:
+    output: true
+
+defaults:
+  - scope:
+      path: ""
+      type: "article"
+    values:
+      layout: "article"
+      og_type: "article"
+  - scope:
+      path: ""
+      type: "download"
+    values:
+      layout: "download"
+
+# Plugins
+plugins:
+  - jekyll-paginate-v2
+  - jekyll-redirect-from
+  # - jekyll-multiple-languages-plugin
+
+# Internationalization
+languages: ["en", "es"]
+exclude_from_localizations: ["assets", "storage"]
+default_lang: "en"
+
+# Godot download version
+stable_version: "3.5.1"
+stable_version_date: "28 September 2022"
+
+# Pagination (used by the blog)
+pagination:
+  # Site-wide kill switch, disabled here it doesn't run at all
+  enabled: true
+
+  # Set to 'true' to enable pagination debugging. This can be enabled in the site config or only for individual pagination pages
+  debug: false
+
+  # The default document collection to paginate if nothing is specified ('posts' is default)
+  collection: "article"
+
+  # How many objects per paginated page, used to be `paginate` (default: 0, means all)
+  per_page: 24
+
+  # The permalink structure for the paginated pages (this can be any level deep)
+  permalink: "/:num/" # Pages are index.html inside this folder (default)
+  #permalink: '/page/:num.html' # Pages are simple html files
+  #permalink: '/page/:num' # Pages are html files, linked jekyll extensionless permalink style.
+
+  # Optional the title format for the paginated pages (supports :title for original page title, :num for pagination page number, :max for total number of pages)
+  title: ":title - Page :num"
+
+  # Limit how many pagenated pages to create (default: 0, means all)
+  limit: 0
+
+  # Optional, defines the field that the posts should be sorted on (omit to default to 'date')
+  sort_field: "date"
+
+  # Optional, sorts the posts in reverse order (omit to default decending or sort_reverse: true)
+  sort_reverse: true
+
+  # Optional, the default category to use, omit or just leave this as 'posts' to get a backwards-compatible behavior (all posts)
+  category: "posts"
+
+  # Optional, the default tag to use, omit to disable
+  tag: ""
+
+  # Optional, the default locale to use, omit to disable (depends on a field 'locale' to be specified in the posts,
+  # in reality this can be any value, suggested are the Microsoft locale-codes (e.g. en_US, en_GB) or simply the ISO-639 language code )
+  locale: ""
+
+  # Optional,omit or set both before and after to zero to disable.
+  # Controls how the pagination trail for the paginated pages look like.
+  trail:
+    before: 2
+    after: 2
+
+  # Optional, the default file extension for generated pages (e.g html, json, xml).
+  # Internally this is set to html by default
+  extension: html
+
+  # Optional, the default name of the index file for generated pages (e.g. 'index.html')
+  # Without file extension
+  indexpage: "index"
+############################################################