fix: remove field-base styles from npm files exclusion (#9922)

Author: web-padawan

packages/field-base/package.json

@@ -22,9 +22,7 @@
   "files": [
     "index.d.ts",
     "index.js",
-    "src",
-    "!src/styles/*-base-styles.d.ts",
-    "!src/styles/*-base-styles.js"
+    "src"
   ],
   "keywords": [
     "Vaadin",