feat: Add emoji and alot of other fixes

electron/entities/index.ts

@@ -8,6 +8,7 @@ export { RoomRoleEntity } from './RoomRoleEntity';
 export { RoomUserRoleEntity } from './RoomUserRoleEntity';
 export { RoomChannelPermissionEntity } from './RoomChannelPermissionEntity';
 export { ReactionEntity } from './ReactionEntity';
+export { CustomEmojiEntity } from './CustomEmojiEntity';
 export { BanEntity } from './BanEntity';
 export { AttachmentEntity } from './AttachmentEntity';
 export { MetaEntity } from './MetaEntity';