Fix storybook broken after updating to sb 6+ and angular 12+

[tschaffter]

Fix #35

Updated storybook packages: npx npm-check-updates '/storybook/' -u && npm install (from here)

[tschaffter]

• I can build the demo app and it looks great
• I can build and start storybook, but the components looks like they don't have any styles applied.

[tschaffter]

The issue is likely:

Could not find Angular Material core theme. Most Material components may not work as expected. For more info refer to the theming guide: https://material.angular.io/guide/theming

[tschaffter]

As @literalpie mentioned the global import of a SCSS file stooped working in Storybook 6.3.x with the version 12.2.x of Angular.

Source

[tschaffter]

The above issue is now tracked in #48 . For now sticking to Angular 12.1.x avoids the issue.