deps: update dependency feelin to v4

Author: renovate[bot]

package-lock.json

@@ -47,7 +47,7 @@
     "@lezer/highlight": "^1.1.6",
     "@lezer/lr": "^1.3.13",
     "@lezer/markdown": "^1.1.0",
-    "feelin": "^3.0.1",
+    "feelin": "^4.0.0",
     "lezer-feel": "^1.2.4",
     "min-dom": "^5.0.0"
   },