migrate to decoupled Blowfish layout, fix TOC scrollspy, and update docs

- Theme Decoupling & Cleanup:
      - Fully decoupled and vendored the Blowfish theme directly into root directories (layouts/,
  assets/, static/, data/, i18n/).
      - De-registered and cleaned up legacy Git submodules (themes/blowfish, themes/hugo-admonitions)
  from the Git index to protect the build from upstream breakages.
      - Configured .gitignore to ignore development preview symlinks (content, static,
  config/_default/menus.en.toml), build folders (public/, resources/), and locks.

    - TOC & Layout Fixes:
      - Replaced the custom layouts/_default/single.html template with the Blowfish default to restore
  native container widths and the side-by-side flex layout.
      - Restored TOC to float on the right sidebar on desktop viewports and render inline on mobile
  viewports.
      - Fixed a parameter resolution bug in layouts/partials/toc.html by checking both .Site.Params.
  smartTOC and .Site.Params.article.smartTOC (where it is defined in params.toml).
      - Upgraded the TOC scrollspy JavaScript to target all '#TableOfContents' containers on the page,
  enabling highlight tracking on both desktop and mobile layouts.

    - Documentation Updates (README.md):
      - Restored YAML front matter metadata block at the top.
      - Added detailed notes on the CI/CD build process and Gitea runner deployment targets
  (/srv/www/docs-public and /srv/www/docs-private).
      - Added a categorized and sorted "Shortcodes Quick Reference" table at the top of the shortcodes
  section (ordered by Custom, Hugo Default, and Blowfish).
      - Documented custom shortcodes (Include, Screenshot, Raw HTML) and missing Hugo default
  shortcodes (Highlight, Instagram, Param, Ref, Relref, Twitter, Vimeo, Youtube).
      - Restructured headings to ensure all sub-shortcodes are H3, removed block break tags (<br/>),
  and appended horizontal separators (---) after H2 sections.

config/_default_original/languages.en.toml

@@ -0,0 +1,27 @@
+languageCode = "en"
+languageName = "English"
+weight = 1
+title = "wiki.wompmacho.com"
+
+[params]
+displayName = "EN"
+isoCode = "en"
+rtl = false
+description = "my personal wiki"
+dateFormat = "2 January 2006"
+
+[params.author]
+name = "Michael"
+image = "me/wampyDance.gif"
+headline = "aka `Mitch` / aka `WompMacho`"
+bio = "some dude that works on datacenters, plays guitar, streams, has a lot of side projects and unhealthy addiction to ow"
+
+    [params.author.social]
+        gitlab = "https://git.wompmacho.com/wompmacho"
+        email = "michael@wompmacho.com"
+        streamelements = "https://streamelements.com/wompmacho/tip"
+        discord = "https://discord.com/invite/P5aZU7jHbD"
+        twitch = "https://www.twitch.tv/wompmacho"
+        youtube = "https://www.youtube.com/wompmacho?sub_confirmation=1"
+
+