[TASK] Replace icon in position map elements

The current arrow icon in position map elements is very small
and may be hard to identify as an arrow.

This patch replaces the icon with a better version of an
arrow icon.

Resolves: #99829
Releases: main
Signed-off-by: Torben Hansen <derhansen@gmail.com>
Change-Id: If3a51d133afd8ed2bdb83b75bf5d4bcf264afad8
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77701


Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>