feat: Add emoji and alot of other fixes

electron/cqrs/commands/handlers/deleteCustomEmoji.ts

@@ -0,0 +1,7 @@
+import { DataSource } from 'typeorm';
+import { CustomEmojiEntity } from '../../../entities';
+import { DeleteCustomEmojiCommand } from '../../types';
+
+export async function handleDeleteCustomEmoji(command: DeleteCustomEmojiCommand, dataSource: DataSource): Promise<void> {
+  await dataSource.getRepository(CustomEmojiEntity).delete({ id: command.payload.emojiId });
+}