Rename twenty-ui to twenty-ui-deprecated and twenty-new-ui to twenty-ui to prepare package release (#21315)

## Description

Promotes the next-gen UI library (formerly `twenty-new-ui`) to the name
**`twenty-ui`** (v0.1.0, publishable) and renames the old package to
**`twenty-ui-deprecated`**. Rewrites ~1,730 `twenty-ui` imports →
`twenty-ui-deprecated`, updates all configs/CI/Docker/deps, and migrates
twenty-front's `Toggle` to the new package (first consumer) as a
drop-in.

## Next steps
- Wire the `ui/v*` publish dispatch (`cd-deploy-tag.yaml` +
`.yarnrc.yml`), then tag `ui/v0.1.0` to publish.
- Continue migrating components from `twenty-ui-deprecated` →
`twenty-ui`.

packages/twenty-ui/.size-limit.json

@@ -0,0 +1,78 @@
+[
+  {
+    "name": ". (root barrel)",
+    "path": "dist/index.mjs",
+    "limit": "60 kB",
+    "import": "*"
+  },
+  {
+    "name": "accessibility",
+    "path": "dist/accessibility.mjs",
+    "limit": "10 kB"
+  },
+  {
+    "name": "assets",
+    "path": "dist/assets.mjs",
+    "limit": "10 kB"
+  },
+  {
+    "name": "testing",
+    "path": "dist/testing.mjs",
+    "limit": "10 kB"
+  },
+  {
+    "name": "components",
+    "path": "dist/components.mjs",
+    "limit": "40 kB"
+  },
+  {
+    "name": "display",
+    "path": "dist/display.mjs",
+    "limit": "30 kB"
+  },
+  {
+    "name": "feedback",
+    "path": "dist/feedback.mjs",
+    "limit": "20 kB"
+  },
+  {
+    "name": "input",
+    "path": "dist/input.mjs",
+    "limit": "50 kB"
+  },
+  {
+    "name": "layout",
+    "path": "dist/layout.mjs",
+    "limit": "20 kB"
+  },
+  {
+    "name": "navigation",
+    "path": "dist/navigation.mjs",
+    "limit": "20 kB"
+  },
+  {
+    "name": "json-visualizer",
+    "path": "dist/json-visualizer.mjs",
+    "limit": "30 kB"
+  },
+  {
+    "name": "theme",
+    "path": "dist/theme.mjs",
+    "limit": "55 kB"
+  },
+  {
+    "name": "theme-constants",
+    "path": "dist/theme-constants.mjs",
+    "limit": "20 kB"
+  },
+  {
+    "name": "utilities",
+    "path": "dist/utilities.mjs",
+    "limit": "10 kB"
+  },
+  {
+    "name": "style.css",
+    "path": "dist/style.css",
+    "limit": "40 kB"
+  }
+]