Merge remote-tracking branch 'misskey-original/develop' into develop

# Conflicts:
#	packages/backend/src/models/RepositoryModule.ts
#	packages/backend/src/models/_.ts
#	packages/backend/src/postgres.ts
#	packages/frontend/src/components/MkDrive.file.vue
#	packages/frontend/src/components/MkEmojiPicker.vue
#	packages/frontend/src/pages/admin/index.vue
#	packages/frontend/src/pages/user/home.vue
#	packages/frontend/src/router.ts
#	packages/frontend/src/ui/universal.vue

packages/frontend/src/store.ts

@@ -511,6 +511,13 @@ export const defaultStore = markRaw(new Storage('base', {
 		where: 'device',
 		default: false,
 	},
+	dropAndFusion: {
+		where: 'device',
+		default: {
+			bgmVolume: 0.25,
+			sfxVolume: 1,
+		},
+	},
 
 	sound_masterVolume: {
 		where: 'device',