feat(build): add theme parameter to static site generator

Included a --theme pride parameter to the generate static site
command in the build workflow. This allows theme customization
during site generation, enhancing site appearance and flexibility.

.forgejo/workflows/build-pride.yml

@@ -20,7 +20,7 @@ jobs:
           python3 -m pip install -r requirements.txt --break-system-packages
 
       - name: Generate static site
-        run: python3 main.py
+        run: python3 main.py --theme pride
 
       - name: Deploy to pages branch
         run: |