gnu: Add kdesignerplugin.

* gnu/packages/kde-frameworks.scm (kdesignerplugin): New variable.

gnu: Add kded.

* gnu/packages/kde-frameworks.scm (kded): New variable.

gnu: Add kdeclarative.

* gnu/packages/kde-frameworks.scm (kdeclarative): New variable.

gnu: Add kconfigwidgets.

* gnu/packages/kde-frameworks.scm (kconfigwidgets): New variable.

gnu: Add kcmutils.

* gnu/packages/kde-frameworks.scm (kcmutils): New variable.

gnu: Add kbookmarks.

* gnu/packages/kde-frameworks.scm (kbookmarks): New variable.

gnu: Add kactivities-stats.

* gnu/packages/kde-frameworks.scm (kactivities-stats): New variable.

Co-authored-by: Hartmut Goebel <h.goebel@crazy-compilers.com>

gnu: Add kactivities.

* gnu/packages/kde-frameworks.scm (kactivities): New variable.

gnu: Add baloo.

* gnu/packages/kde-frameworks.scm (baloo): New variable.

gnu: Add prefix to license imports in (gnu packages qt).

* gnu/packages/qt.scm: Import (guix licenses) with prefix
  "license:".

gnu: qtbase: Add native search paths.

* gnu/packages/qt.scm (qtbase)[native-search-paths]: Add
  QML2_IMPORT_PATH, QT_PLUGIN_PATH, XDG_DATA_DIRS and XDG_CONFIG_DIRS.

gnu: emacs-neotree: Keep downloaded source file format.

* gnu/packages/emacs.scm (emacs-neotree)[source]: Keep downloaded file format.

gnu: entr: Update to 3.6.

Suggested by Matthew O'N.S Jordan <matthewjordannm@gmail.com>.

* gnu/packages/entr.scm (entr): Update to 3.6.

gnu: libnfsidmap: Correct punctuation

* gnu/packages/linux.scm (libnfsidmap)[description]: Replace semicolon with colon.

gnu: squeak-vm: Make builds bit-reproducible.

* gnu/packages/smalltalk.scm (squeak-vm)[source]: Add 'snippet'.

gnu: Add squeak-vm.

* gnu/packages/smalltalk.scm (squeak-vm): New variable.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

gnu: smalltalk: Use 'license:' prefix.

* gnu/packages/smalltalk.scm: Use 'license:' prefix for (guix licenses).

gnu: libnfsidmap: Fix Texinfo markup.

* gnu/packages/linux.scm (libnfsidmap)[description]: Add missing @code.

gnu: guile-gnunet: Use https URL.

* gnu/packages/gnunet.scm (guile-gnunet)[home-page]: Use https URL.

gnu: grub: Use https URL.

* gnu/packages/grub.scm (grub)[home-page]: Use https URL.