Add linting tasks

lib/tasks/lint.rake

@@ -0,0 +1,17 @@
+desc "Run Rubocop"
+task rubocop: :environment do
+  sh "bundle exec rubocop"
+end
+
+desc "Run ERB Lint"
+task erblint: :environment do
+  sh "bundle exec erblint --lint-all"
+end
+
+desc "Run Stylelint"
+task stylelint: :environment do
+  sh "yarn stylelint app/frontend/styles"
+end
+
+desc "Run all the linters"
+task lint: %i[rubocop erblint stylelint]