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

Conflicts:
- `.github/dependabot.yml`:
  Upstream made changes while we have dropped this file.
  Keep the file deleted.
- `.prettierignore`:
  Upstream made changes at the end of the file, where we
  had our extra lines.
  Just moved our extra lines back at the end.
- `app/serializers/initial_state_serializer.rb`:
  Upstream code style changes.
  Applied them.
- `app/services/backup_service.rb`:
  Upstream code style changes.
  Applied them.

jest.config.js

@@ -1,9 +1,7 @@
-module.exports = {
-  'testEnvironment': 'jsdom',
-  'projects': [
-    '<rootDir>/app/javascript/mastodon',
-  ],
-  'testPathIgnorePatterns': [
+/** @type {import('jest').Config} */
+const config = {
+  testEnvironment: 'jsdom',
+  testPathIgnorePatterns: [
     '<rootDir>/node_modules/',
     '<rootDir>/vendor/',
     '<rootDir>/config/',
@@ -12,22 +10,17 @@ module.exports = {
     '<rootDir>/tmp/',
     '<rootDir>/app/javascript/themes/',
   ],
-  'setupFiles': [
-    'raf/polyfill',
-  ],
-  'setupFilesAfterEnv': [
-    '<rootDir>/app/javascript/mastodon/test_setup.js',
-  ],
-  'collectCoverageFrom': [
+  setupFiles: ['raf/polyfill'],
+  setupFilesAfterEnv: ['<rootDir>/app/javascript/mastodon/test_setup.js'],
+  collectCoverageFrom: [
     'app/javascript/mastodon/**/*.js',
     '!app/javascript/mastodon/features/emoji/emoji_compressed.js',
     '!app/javascript/mastodon/locales/locale-data/*.js',
     '!app/javascript/mastodon/service_worker/entry.js',
     '!app/javascript/mastodon/test_setup.js',
   ],
-  'coverageDirectory': '<rootDir>/coverage',
-  'moduleDirectories': [
-    '<rootDir>/node_modules',
-    '<rootDir>/app/javascript',
-  ],
+  coverageDirectory: '<rootDir>/coverage',
+  moduleDirectories: ['<rootDir>/node_modules', '<rootDir>/app/javascript'],
 };
+
+module.exports = config;