Update KDE's Applications to 20.04.1

From the changelog [1]:
Some of the fixes included in this release are:

• kio-fish: Only store password in KWallet if the user asked for it.
• The Umbrello Fixes for adding multiline c++ comment support.
• The scrolling behavior in the Okular document viewer has been

	  improved and is more usable with free-spinning mouse wheels

• A regression that sometimes caused the JuK music player to

	  crash on start has been fixed

• The Kdenlive video editor has received many stability updates,

	  including a fix to the DVD chapter creation and a fix that
	  improves the handling of timecodes, improved handling of missing
	  clips, draw “photo” frame on image clips to differentiate from
	  video clips., and previews in the timeline

• KMail now correctly handles existing maildir folders when adding

	  a new maildir profile and no longer crashes when adding too many
	  recipients

• Import and export of Kontact settings has been enhanced to include

	  more data

[1] https://kde.org/announcements/changelog-releases.php?version=20.04.1