feat: use william.js for discord validation

backend/UserConfig.ts

@@ -3,6 +3,7 @@ import { UserConfiguration, UserConfigTypeChecker, PostgresConfiguration } from
 import fs from 'fs-extra';
 import { path } from '@tycrek/joint';
 import { log } from './log.js';
+import { validate } from 'william.js';
 
 const FILEPATH = path.join('.ass-data/userconfig.json');
 
@@ -40,10 +41,7 @@ const Checkers: UserConfigTypeChecker = {
 	idSize: numChecker,
 	gfySize: numChecker,
 	maximumFileSize: numChecker,
-	discordWebhook: (val) => {
-		const regex = /^https:\/\/discord\.com\/api\/webhooks\/\d+\/\S+$/;
-		return regex.test(val);
-	},
+	discordWebhook: (val) => validate.discord.webhook(val),
 
 	s3: {
 		endpoint: basicStringChecker,

package.json

@@ -63,7 +63,7 @@
     "shoelace-pug-loader": "^2.11.0",
     "tailwindcss": "^3.3.6",
     "typescript": "^5.3.2",
-    "william.js": "^1.2.2"
+    "william.js": "^1.3.1"
   },
   "devDependencies": {
     "@types/bcrypt": "^5.0.2",