…astic#76533)

* wip, issues with use fields getting cleared somehow

* New drag and drop text list component

- updated use array to add its own field so that we hook into form
- added new drag and drop list component
- wip on validation (empty lists validate immediately, which it should not)

* remove box shadow from editor fields

* Style grok patterns based on drag and drop in component templates

- still have the issue with validation
- need to get some design review at this point

* fix i18n

* update use_array - maintain the same API though

* Grok processor should use the new use array interface

- also fix the documentation using links in the processor type
  description. react was unhappy about hook order changing

* fix patterns field validation to check validity of pattern entires

* fix drag item styling

* fix use of form in use effect and update behaviour of submit button

* added smoke test for grok component

* fix i18n

* Implement PR feedback

* Implemented design feedback

- decreased spacing between list items and button
- fixed a11y issue between label and first text field
- moved help text to under label
- refactored all of the field layout logic into drag and drop
  text list component.

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>