Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- Gemfile
- Gemfile.lock
- app/controllers/about_controller.rb
- app/controllers/auth/sessions_controller.rb

app/javascript/packs/public.js

@@ -110,6 +110,16 @@ function main() {
       this.parentElement.parentElement.nextElementSibling.classList.toggle('hidden');
     });
   });
+
+  delegate(document, '.sidebar__toggle__icon', 'click', () => {
+    const target = document.querySelector('.sidebar ul');
+
+    if (target.style.display === 'block') {
+      target.style.display = 'none';
+    } else {
+      target.style.display = 'block';
+    }
+  });
 }
 
 loadPolyfills().then(main).catch(error => {