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/src/testing/ComponentStorybookLayout.tsx

@@ -1,52 +0,0 @@
-import { styled } from '@linaria/react';
-import { isDefined } from 'twenty-shared/utils';
-import { themeCssVariables } from '@ui/theme-constants';
-
-const StyledLayout = styled.div<{
-  width?: number;
-  backgroundColor?: string | undefined;
-  height: number | 'fit-content';
-}>`
-  background: ${({ backgroundColor }) =>
-    backgroundColor ?? themeCssVariables.background.primary};
-  border: 1px solid ${themeCssVariables.border.color.light};
-  border-radius: 5px;
-
-  display: flex;
-  flex-direction: row;
-
-  height: ${({ height }) =>
-    height === 'fit-content'
-      ? 'fit-content'
-      : `
-      ${height}px
-    `};
-  max-width: calc(100% - 40px);
-  min-width: ${({ width }) => (width ? 'unset' : '300px')};
-  padding: 20px;
-  width: ${({ width }) => (width ? width + 'px' : 'fit-content')};
-`;
-
-type ComponentStorybookLayoutProps = {
-  width?: number;
-  backgroundColor?: string | undefined;
-  height?: number;
-  children: JSX.Element;
-};
-
-export const ComponentStorybookLayout = ({
-  width,
-  backgroundColor,
-  height,
-  children,
-}: ComponentStorybookLayoutProps) => {
-  return (
-    <StyledLayout
-      width={width}
-      backgroundColor={backgroundColor}
-      height={isDefined(height) ? height : 'fit-content'}
-    >
-      {children}
-    </StyledLayout>
-  );
-};