refactor: remove unused import, markdown fences, and standardize string interpolation formatting.

src/commands/economy/balance.ts

@@ -1,7 +1,6 @@
 import { createCommand } from "@/lib/utils";
 import { SlashCommandBuilder, EmbedBuilder } from "discord.js";
 import { userService } from "@/modules/user/user.service";
-import { createWarningEmbed } from "@/lib/embeds";
 
 export const balance = createCommand({
     data: new SlashCommandBuilder()