fix: adjust typescript peer dep (#479)

Was accidentally bumped in another commit

Author: dummdidumm

Diff for: package.json

@@ -124,7 +124,7 @@
     "stylus": "^0.55.0",
     "sugarss": "^2.0.0",
     "svelte": "^3.23.0",
-    "typescript": "^4.5.2"
+    "typescript": "^3.9.5 || ^4.0.0"
   },
   "peerDependenciesMeta": {
     "@babel/core": {