feat: sensitive channel (#11438)

* feat(backend): add isSensitive to Channel

* feat(backend): support isSensitive in channel endpoints

* feat(frontend/channel-editor): support isSensitive in create/edit channel page

* feat(frontend/channel): show sensitive indicator for sensitive channels

* docs(changelog): add チャンネルをセンシティブ指定できるようになりました

* chore: license header for each file

* chore: add isSensitive of channel to Note object

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

@@ -49,6 +49,7 @@ export const paramDef = {
 		description: { type: 'string', nullable: true, minLength: 1, maxLength: 2048 },
 		bannerId: { type: 'string', format: 'misskey:id', nullable: true },
 		color: { type: 'string', minLength: 1, maxLength: 16 },
+		isSensitive: { type: 'boolean', nullable: true },
 	},
 	required: ['name'],
 } as const;
@@ -86,6 +87,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				name: ps.name,
 				description: ps.description ?? null,
 				bannerId: banner ? banner.id : null,
+				isSensitive: ps.isSensitive ?? false,
 				...(ps.color !== undefined ? { color: ps.color } : {}),
 			} as Channel).then(x => this.channelsRepository.findOneByOrFail(x.identifiers[0]));