fix: make typescript an optional peer dependency (#15074)

Co-authored-by: Ben McCann <322311+benmccann@users.noreply.github.com>

Author: cierny

.changeset/sharp-ducks-laugh.md

@@ -0,0 +1,5 @@
+---
+"@sveltejs/kit": patch
+---
+
+fix: add `typescript` as an optional peer dependency

packages/kit/package.json

@@ -51,11 +51,15 @@
 		"@sveltejs/vite-plugin-svelte": "^3.0.0 || ^4.0.0-next.1 || ^5.0.0 || ^6.0.0-next.0",
 		"@opentelemetry/api": "^1.0.0",
 		"svelte": "^4.0.0 || ^5.0.0-next.0",
+		"typescript": "^5.3.3",
 		"vite": "^5.0.3 || ^6.0.0 || ^7.0.0-beta.0"
 	},
 	"peerDependenciesMeta": {
 		"@opentelemetry/api": {
 			"optional": true
+		},
+		"typescript": {
+			"optional": true
 		}
 	},
 	"bin": {