Custom reaction (#4517)

* Custom reaction

* increase limit of reactions/delete

* リアクションの場合は OS標準の絵文字を使用 を迂回する

* カスタムリアクションを無効にする設定

* fix

* disableCustomReaction --> enableEmojiReaction

* Avoid MFM rendering

* 🎨

* 🎨

* Auto accept

* custom emoji reaction

* Improve usability

* Extract emojiRegex

* Fix

* Clean up

* 🎨

* 🎨

* toDbReaction で reaction は必須に

あとフォールバックは like に

* Clean up

* Make required

* https://github.com/syuilo/misskey/pull/4517/commits/3eb08748feeaab9ee5c5b505c870f97d7edbeb0d#r266241728

* Refactor

* Allow null

src/server/api/endpoints/meta.ts

@@ -70,6 +70,10 @@ export const meta = {
 				type: 'boolean',
 				description: 'Whether disabled GTL.',
 			},
+			enableEmojiReaction: {
+				type: 'boolean',
+				description: 'Whether enabled emoji reaction.',
+			},
 		}
 	}
 };
@@ -107,6 +111,7 @@ export default define(meta, async (ps, me) => {
 		disableRegistration: instance.disableRegistration,
 		disableLocalTimeline: instance.disableLocalTimeline,
 		disableGlobalTimeline: instance.disableGlobalTimeline,
+		enableEmojiReaction: instance.enableEmojiReaction,
 		driveCapacityPerLocalUserMb: instance.localDriveCapacityMb,
 		driveCapacityPerRemoteUserMb: instance.remoteDriveCapacityMb,
 		cacheRemoteFiles: instance.cacheRemoteFiles,