gnucash-docs maint: L10N:de: Description of splash.png and remove one unneeded picture

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/cc76a8cd (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/1bb97cfc (commit)



commit cc76a8cdb497930ced516ebe7fdca0cd5fd3acd9
Author: Christian Wehling <christian.wehling at web.de>
Date:   Wed Jul 13 11:18:09 2022 +0200

    L10N:de: Description of splash.png and remove one unneeded picture



Summary of changes:
 manual/de/ch_GettingStarted.xml           |  34 ++++++++++++++++++++++++++++++
 manual/de/figures/summarybar-selector.png | Bin 54170 -> 0 bytes
 2 files changed, 34 insertions(+)
 delete mode 100644 manual/de/figures/summarybar-selector.png