[ui] Fix build and storybook for ui-components

js_modules/dagster-ui/packages/ui-components/.storybook/preview.js

@@ -17,7 +17,9 @@ import {MemoryRouter} from 'react-router-dom';
 
 import {createGlobalStyle} from 'styled-components';
 
-import './blueprint.css';
+import '@blueprintjs/core/lib/css/blueprint.css';
+import '@blueprintjs/select/lib/css/blueprint-select.css';
+import '@blueprintjs/popover2/lib/css/blueprint-popover2.css';
 
 const GlobalStyle = createGlobalStyle`
   * {

js_modules/dagster-ui/packages/ui-components/rollup.config.js

@@ -24,7 +24,7 @@ export default {
     // without pulling in the entire library.
     'components/Box': './src/components/Box.tsx',
     'components/Button': './src/components/Button.tsx',
-    'components/Colors': './src/components/Colors.tsx',
+    'components/Color': './src/components/Color.tsx',
     'components/Icon': './src/components/Icon.tsx',
   },
   output: {

js_modules/dagster-ui/packages/ui-components/src/components/Box.tsx

@@ -4,7 +4,7 @@ import {Colors} from './Color';
 import {BorderSetting, BorderSide, DirectionalSpacing, FlexProperties} from './types';
 import {assertUnreachable} from '../util/assertUnreachable';
 
-interface Props {
+export interface Props {
   background?: string | null;
   border?: BorderSide | BorderSetting | null;
   flex?: FlexProperties | null;