[TASK] Streamline icons for "new" actions

Usage:
- actions-add-placeholder
Link to wizards / controller where the selection
between serveral kinds of new records can be made
- actions-add
Link to creation form for all records
except pages (EditDocumentController)
-actions-page-new
Link to creation form for page record
-actions-document-new
Link to create multiple new records

Resolves: #81428
Releases: master
Change-Id: I10ced54f5cd8c09c095a699fd0994a9dd5fa0f05
Reviewed-on: https://review.typo3.org/53073


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Tested-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>