migration to Svelte 4

package.json

@@ -13,7 +13,7 @@
 	"devDependencies": {
 		"@sveltejs/adapter-auto": "^2.1.0",
 		"@sveltejs/kit": "^1.22.3",
-		"svelte": "^3.59.2",
+		"svelte": "^4.0.0",
 		"svelte-check": "^3.4.6",
 		"svelte-preprocess-import-assets": "^1.0.1",
 		"tslib": "^2.6.0",
@@ -31,4 +31,4 @@
 		"svelte-cookie": "^1.0.1",
 		"sveltekit-oidc": "^0.0.8"
 	}
-}
+}