Bump twenty-ui to 1.0.0-alpha.0 for first npm pre-release (#22040)

Sets `twenty-ui` to `1.0.0-alpha.0` so it can be published as the first
pre-release on npm.

The package name was previously published once (`0.23.4`) and fully
unpublished in Sept 2024. Starting at `1.0.0-alpha.0` avoids the burned
version, stays above the old number, and publishes to the `alpha`
dist-tag (not `latest`) via the existing twenty-infra publish workflow,
so it can be dogfooded before a stable `1.0.0`.

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packages/twenty-ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "twenty-ui",
-  "version": "0.1.0",
+  "version": "1.0.0-alpha.0",
   "description": "Twenty's shared React UI component library.",
   "license": "AGPL-3.0",
   "repository": {