chore: update package files and license setup

- Remove `LICENSE` from `core` package files and adjust file paths.
- Include `README.md` in `nuxt` package files.
- Consolidate and relocate `LICENSE` file.

Author: guendev

packages/core/LICENSE renamed to LICENSE

@@ -43,8 +43,7 @@
   },
   "files": [
     "dist",
-    "README.md",
-    "LICENSE"
+    "README.md"
   ],
   "sideEffects": false,
   "scripts": {

packages/core/package.json

@@ -36,7 +36,8 @@
     }
   },
   "files": [
-    "dist"
+    "dist",
+    "README.md"
   ],
   "scripts": {
     "prepack": "nuxt-module-build prepare && nuxt-module-build build",