Add DELETE guild settings route

For completely resetting a guild

src/routes/api/admin/guilds/[guild]/index.js

@@ -1,3 +1,16 @@
+module.exports.delete = fastify => ({
+	handler: async (req, res) => {
+		/** @type {import('../../../../../client')} */
+		const client = res.context.config.client;
+
+		await client.prisma.guild.delete({ where: { id: req.params.guild } });
+		const settings = await client.prisma.guild.create({ data: { id: req.params.guild } });
+
+		res.send(settings);
+	},
+	onRequest: [fastify.authenticate, fastify.isAdmin],
+});
+
 module.exports.get = fastify => ({
 	handler: async (req, res) => {
 		/** @type {import('../../../../../client')} */