Add missing and review components for style guide

[cnotv]

Description

Several definitions are still missing to the list of the style guide. This is going to be an ongoing list to be reviewed.

List of definitions

Guidelines

• Add grid system to the styleguide #7589
• Heading guidelines (currently we have just the typography aspect)

Components

Unlisted components

• Add HardwareResourceGauge component to Storybook #9374
• Add ButtonGroup to Storybook #9373
• Add AsyncButton to Storybook #9358
• Add Wizard component to Storybook #9268
• Add all Banner component use cases in the storybook. #8628
• Add side navigation with all the cases to the styleguide #9862
• Add GitPicker component to Storybook #10240
• Loader
• Namespace header
• Context menu

Component to be created

• Create Button component or merge with existing AsyncButton #9398
• Create icon component with utilities and style guide #7588
• Layouts? It would be nice to have a list of pre-defined layouts, as it's a common practice

Components to be reviewed

This is a list of components which answer to a logic use rather than a design case. It often required to be reviewed in somehow, both design wise or code, e.g. merged with others.

• Add dropdown component to the Storybook #9850
• Review used CodeMirror options and add them to Storybook #9843
• Merge CopyToClipboardText and CopyToClipboard components #9842

Storybook Enhancements (optionally)

• Add pseudo states for Storybook components #9395
• Fix storybook dark theme for doc section #9754
• Configure Storybook for faster rendering and bundling #9344
• Setup and introduce visual regression tests #9057
• Restrict Storybook CI workflow to meaningful paths #7590