12787 resizable layout component

Description

New component in studio-components using flexbox and flex-grow to create a resizable layout that keeps proportions when scaled
- StudioResizableLayoutContainer
- Should be used as parent element to StudioResizableLayoutElement
- Can be defined as either a vertical or horizontal layout
- Saves resize state in local storage (uniquely identified by localStorageContext prop)
- Custom styling can be added with the style prop
- StudioResizableLayoutElement
- Can restrict resizing with minimumSize
- Collapsing can be toggled with collapsed and size controlled with collapsedSize
- Custom styling can be added with the style prop
- StudioResizableLayoutHandle
- Automatically added between Element components
- Handles mouse and keyboard events for resizing
Container is a wrapper to set up the resizable layout container. Element is used to create individual resizable boxes within the container and should only be used inside a Container component
New storybook entry
Moved useLocalStorage and useWebStorage hooks to studio-components hooks folder
Moved layoutSet dropdown from components pane to new toolbar similar to the one on the datamodels page

[ ] Your code builds clean without any errors or warnings
[ ] Manual testing done (required)
[ ] Relevant automated test added (if you find this hard, leave it and we'll help out)

[ ] User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)