Drop support for Svelte 3

Author: pedroborges

packages/svelte/package.json

@@ -40,7 +40,7 @@
     "!dist/**/*.spec.*"
   ],
   "peerDependencies": {
-    "svelte": "^3.20.0 || ^4.0.0 || ^5.0.0 || ^5.0.0-next.244"
+    "svelte": "^4.0.0 || ^5.0.0 || ^5.0.0-next.244"
   },
   "dependencies": {
     "@inertiajs/core": "1.2.0",