Toolkit: Fix script failures due to missing import paths (#55857)

* fix(toolkit): package without dist folder so config file paths are correct

* chore(packages): make sure to bundle readme, changelog and apache2 license

* refactor(packages): recursively copy src when prepacking toolkit

* chore(toolkit): lock down babel dependencies. use grafana-eslint-config@5 for TS4.8 support

packages/grafana-data/package.json

@@ -23,7 +23,8 @@
   },
   "files": [
     "dist",
-    "CHANGELOG.md",
+    "./README.md",
+    "./CHANGELOG.md",
     "LICENSE_APACHE2"
   ],
   "scripts": {