Converted main codebase to typescript

Signed-off-by: Taken <taken@mairimashita.org>

src/interfaces/Command.ts

@@ -0,0 +1,13 @@
+import { ChatInputCommandInteraction, SlashCommandBuilder} from "discord.js"
+import { ExtendedClient as Client } from "../utils/Client"
+
+export default interface Command {
+    name: string
+    description: string
+    type: "slash"
+    dev?: boolean
+    public: boolean
+    data: Omit<SlashCommandBuilder, "addSubcommand" | "addSubcommandGroup" | "addIntegerOption">
+    subcommands?: boolean
+    execute: (interaction: ChatInputCommandInteraction, client: Client) => Promise<void>
+}