Merge pull request #15589 from grafana/grafanaui/alpha-release

grafana/ui 1.0.0-alpha.0 release - package version bump

packages/grafana-ui/package.json

 {
   "name": "@grafana/ui",
-  "version": "0.0.0",
+  "version": "1.0.0-alpha.0",
   "description": "Grafana Components Library",
   "keywords": [
     "typescript",