Added lock.js slash command

SlashCommands/admin/lock.js

@@ -0,0 +1,21 @@
+const { Client, CommandInteraction, Permissions } = require("discord.js");
+
+module.exports = {
+    name: "lock",
+    description: "locks a channel",
+    type: 'CHAT_INPUT',
+    /**
+     *
+     * @param {Client} client
+     * @param {CommandInteraction} interaction
+     * @param {String[]} args
+     */
+    run: async (client, interaction, args) => {
+
+        const permission = interaction.member.permissions.has(Permissions.FLAGS.MANAGE_CHANNELS)
+        if (!permission)return interaction.reply({ contents: "You don't have permission to use this command", ephemeral: true });
+        interaction.channel.permissionOverwrites.edit(interaction.guild.roles.everyone.id, {SEND_MESSAGES: false});
+        interaction.reply("Channel has been locked.")
+
+    },
+};