Directory-components

[Full Changelog](https://github.com/uktrade/directory-components/pull/303/files)

Implemented enhancements
- Fix accordions details arrow not hiding in IE

[Full Changelog](https://github.com/uktrade/directory-components/pull/302/files)

Implemented enhancements
- Separate details and accordions into two styles

Breaking changes
- `details_list` template tag has been renamed to `accordion_list`
- `great-details-list` class has been renamed to `great-accordion-list`

[Full Changelog](https://github.com/uktrade/directory-components/pull/301/files)

Fixed bugs
- Removed trailing commas in javascript

[Full Changelog](https://github.com/uktrade/directory-components/pull/300/files)

Fixed bugs
- Revert to old hero using `background-image` style. `picture` element is not supported by IE

Breaking changes
- `hero` template tag no longer takes the params `xlarge_image`, `large_image`, `medium_image`, `small_image`. Instead just use `image`

[Full Changelog](https://github.com/uktrade/directory-components/pull/296/files)

Implemented enhancements
- no ticket - change bullet point colour to 333

[Full Changelog](https://github.com/uktrade/directory-components/pull/295/files)

Implemented enhancements
- Split out the content of the error pages, so that they can be used on multiple apps.