Merge branch 'release-5.0' into 'main'

.gitlab-ci.yml

Gemfile

Gemfile.lock

README.md

Rakefile

app/controllers/accounts_controller.rb

app/controllers/application_controller.rb

app/controllers/keys_controller.rb

app/controllers/subscriptions_controller.rb

app/models/base.rb

app/views/application/_flashes.html.haml

app/views/keys/_upload_fields.html.haml

app/views/keys/_upload_spacer.html.haml

app/views/layouts/application.html.haml

bin/rails

bin/setup

config/application.rb

config/boot.rb

config/environments/development.rb

config/environments/production.rb