Breaking: #68321 - Move language and images in rtehtmlarea 

See forge#68321

Description 

All language files and images have been moved.

Impact 

Labels and images may be not displayed if TypoScript from the sample files is used.

Affected Installations 

All installations that use the TypoScript settings from the provided sample files.

Migration 

Adjust the path to language and image files according the sample TypoScript files provided by the extension.