[New: openFATE 311245] Add a nice slider to resize partition

Feature added by: Roman Bysh (Romanator) Feature #311245, revision 1 Title: Add a nice slider to resize partition openFATE: Unconfirmed Priority Requester: Important Requested by: Roman Bysh (romanator) Partner organization: openSUSE.org Description: I'm requesting that we add a nice slider to resize the partition with visual readout. This way we have two options: 1. Manual slider for resizing partitions 2. Manual text entry for resizing by partition/cylinder -- openSUSE Feature: https://features.opensuse.org/311245