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

Conflicts:
- `.github/dependabot.yml`:
  Updated upstream, removed in glitch-soc to disable noise.
  Kept removed.
- `CODE_OF_CONDUCT.md`:
  Upstream updated to a new version of the covenant, but I have not read it
  yet, so kept unchanged.
- `Gemfile.lock`:
  Not a real conflict, one upstream dependency updated textually too close to
  the glitch-soc only `hcaptcha` dependency.
  Applied upstream changes.
- `app/controllers/admin/base_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/application_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/disputes/base_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/relationships_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/statuses_cleanup_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/helpers/application_helper.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/javascript/mastodon/features/compose/components/compose_form.jsx`:
  Upstream added a highlight animation for onboarding, while we changed the
  max character limit.
  Applied our local changes on top of upstream's new version.
- `app/views/layouts/application.html.haml`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `stylelint.config.js`:
  Upstream added ignore paths, glitch-soc had extra ignore paths.
  Added the same paths as upstream.

spec/controllers/application_controller_spec.rb

@@ -139,25 +139,6 @@ describe ApplicationController, type: :controller do
     include_examples 'respond_with_error', 422
   end
 
-  describe 'before_action :store_current_location' do
-    it 'stores location for user if it is not devise controller' do
-      routes.draw { get 'success' => 'anonymous#success' }
-      get 'success'
-      expect(controller.stored_location_for(:user)).to eq '/success'
-    end
-
-    context do
-      controller Devise::SessionsController do
-      end
-
-      it 'does not store location for user if it is devise controller' do
-        @request.env['devise.mapping'] = Devise.mappings[:user]
-        get 'create'
-        expect(controller.stored_location_for(:user)).to be_nil
-      end
-    end
-  end
-
   describe 'before_action :check_suspension' do
     before do
       routes.draw { get 'success' => 'anonymous#success' }