Fix build conflicts, implement new logo, switch to GitHub Actions

Author: viktorpm

.github/workflows/jekyll.yml

@@ -33,11 +33,12 @@ jobs:
         with:
           ruby-version: '3.1'
           bundler-cache: true
+      - name: Install dependencies
+        run: bundle install
       - name: Setup Pages
         uses: actions/configure-pages@v4
       - name: Build with Jekyll
-        run: |
-          bundle exec jekyll build --baseurl "${{ steps.determine-url.outputs.base_url }}"
+        run: bundle exec jekyll build
         env:
           JEKYLL_ENV: production
       - name: Upload artifact

Gemfile

@@ -1,4 +1,6 @@
 source "https://rubygems.org"
 
-# GitHub Pages compatible Jekyll setup
-gem "github-pages", group: :jekyll_plugins
+# Jekyll setup for GitHub Actions
+gem "jekyll", "~> 4.3.0"
+gem "jekyll-feed", "~> 0.12"
+gem "jekyll-sitemap"