shared: Add shared app for shared stuff

README.md

majak/settings/base.py

senat_campaign/templates/senat_campaign/base.html

shared/__init__.py

shared/apps.py

shared/static/shared/favicon/favicon-128.png

shared/static/shared/favicon/favicon-16.png

shared/static/shared/favicon/favicon-196.png

shared/static/shared/favicon/favicon-32.png

shared/static/shared/favicon/favicon-96.png

shared/static/shared/img/og_image.jpg

...tatic/shared/vendor/bootstrap-4.4.1/css/bootstrap.min.css

.../static/shared/vendor/bootstrap-4.4.1/js/bootstrap.min.js

shared/static/shared/vendor/fancybox/jquery.fancybox.min.css

shared/static/shared/vendor/fancybox/jquery.fancybox.min.js

shared/static/shared/vendor/jquery/jquery-3.4.1.min.js

shared/static/shared/vendor/lazysizes/lazysizes.min.js

shared/templates/shared/matomo_snippet.html