Align project files with CodeHarbor

Since both projects are developed together and by the same team, we also want to have the same code structure and utility methods available in both projects. Therefore, this commit changes many files, but without a functional change.

.gitignore

@@ -1,27 +1,52 @@
+# Ignore application configuration
 /config/action_mailer.yml
 /config/code_ocean.yml
+/config/content_security_policy.yml
 /config/database.yml
+/config/docker.yml.erb
 /config/mnemosyne.yml
 /config/secrets.yml
-/config/docker.yml.erb
-/config/content_security_policy.yml
+/config/settings.local.yml
+/config/settings/*.local.yml
+/config/environments/*.local.yml
+
+# Ignore temporary files
 /coverage
-/log/*.*
-/public/assets
-/public/uploads
+/log
 /rubocop.html
 /tmp
-/vagrant/
-/.capistrano
-/.vagrant
-*.sublime-*
-/.idea
-/.vagrant
-*.iml
 *.DS_Store
+
+## Ignore editor-specific artifacts
+# Vagrant
+/.vagrant
+/vagrant
+# Sublime
+*.sublime-*
+# IntelliJ
+/.idea
+*.iml
+
+## Environment normalisation:
+/.bundle
+/vendor/bundle
+
+# Ignore Byebug command history file.
+.byebug_history
+
+# Ignore node_modules
+node_modules/
+
+# Ignore precompiled javascript packs
 /public/packs
 /public/packs-test
-/node_modules
+/public/assets
+
+# Ignore yarn files
 /yarn-error.log
 yarn-debug.log*
 .yarn-integrity
+
+# Ignore uploaded files in development
+/storage
+/public/uploads