fix(general): flash/createでPlayの公開範囲を指定できない問題の修正と編集画面の調整 (#13574)

* fix(backend): param `visibility` wasn't included in `flash/create`

* fix(frontend): tweak flash editor ui

* Update CHANGELOG.md

packages/backend/src/server/api/endpoints/flash/create.ts

@@ -44,6 +44,7 @@ export const paramDef = {
 		permissions: { type: 'array', items: {
 			type: 'string',
 		} },
+		visibility: { type: 'string', enum: ['public', 'private'], default: 'public' },
 	},
 	required: ['title', 'summary', 'script', 'permissions'],
 } as const;
@@ -66,6 +67,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				summary: ps.summary,
 				script: ps.script,
 				permissions: ps.permissions,
+				visibility: ps.visibility,
 			}).then(x => this.flashsRepository.findOneByOrFail(x.identifiers[0]));
 
 			return await this.flashEntityService.pack(flash);