docs: enhance Jekyll configuration with comprehensive site settings

- Add base URL and site configuration for GitHub Pages
- Include remote theme and additional Jekyll plugins
- Configure navigation structure and page layouts
- Set up collections for tools and development sections
- Optimize Gemfile with additional dependencies

docs/Gemfile

@@ -4,6 +4,7 @@ gem "github-pages", group: :jekyll_plugins
 gem "jekyll-theme-minimal"
 gem "jekyll-relative-links"
 gem "jekyll-seo-tag"
+gem "jekyll-remote-theme"
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
 # and associated library.
@@ -14,4 +15,7 @@ end
 
 # Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
 # do not have a Java counterpart.
-gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby] 
+gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
+
+# Add webrick for Ruby 3.0+
+gem "webrick", "~> 1.7"