Use Symfony for generating the webpage

Advantage

• Clean MVC pattern
  • view is located in ./templates and use twig to advanced templating
  • model is located in ./src/Model and is very similar to the old AppData class
  • controller and routing is located in ./src/Controller
• Allow full translations and a ./StaticMessages.sh file is already present
• The application can be self hosted and don't need a full copy of kde-org to run

How to test

git clone git@invent.kde.org:websites/kde-org-applications-extractor
cd kde-org-applications-extractor
bundle install
bundle exec ./appstream.rb
bundle exec ./appstream_mkindex.rb
cd ..
mv icons thumbnails public
composer install
bin/console server:run

Know regression to fix

• display unmaintained per default
• Don't display license text (do we really need it and shouldn't we just add a link to the license identifier in the sidebar)
• unmaintained links are broken
• Display big image when clicking on the thumbnail