*/*: Bump consumers of x11-toolkits/gtk30

New version of gtk3 in tree

XFCE: Cleanup dependencies

- Update xfce.mk to avid forcing too many dependencies on consumers
- Change dependency on garcon to reference libgarcon-1.so (main
  library)
- Explicitly add USE_XFCE components to the ports actually needing
  them.
- Cleanup dependencies, adding/removing missing/extra dependencies
- Change the referenced library in some LIB_DEPENDS to the actually
  linked one (avoids false positives in poudriere Q/A tests)
- Bump PORTREVISION on all touched ports, even indirectly due to
  the effect of removing forced dependencies on certain components
- Remove USES=fuse from gigolo. I could not find any kind f reference
  to fuse in the code.
- xfce4-bsdcpufreq-plugin: Also remove empty comment at the top of
  the Makefile

accessibility/at-spi2-core: update to 2.46.0

What's new in at-spi2-core 2.46.0:
* Fix GetInterfaces documentation on org.a11y.atspi.Accessible
  interface.

What's new in at-spi2-core 2.45.91:
* Send device event controller events using the same signature as other
  events.
* Document the Accessible, Action, and Cache dbus interfaces.
* Fix license of atspi-gmain.c (#87).

What's new in at-spi2-core 2.45.90:
* xml: Add some documentation.
* xml: Fix event arguments.

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

INSTALLS_ICONS: retire the macro and rework the related dependencies

While here, make sure gtk-update-icon-cache is only on run dependency
where added as a dependency
Enforce gtk3 to depend on gtk-update-icon-cache (previously it was
inheriting the dependency)

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

Update xfce4-stopwatch-plugin to 0.5.0

Welcome XFCE 4.16 to the FreeBSD ports tree!

Upstream announce: https://xfce.org/about/news/?post=1608595200

This XFCE release dropped support for GTK2 plugins and also dropped
GTK2 from all components.

WARNING: please check UPDATING before upgrading your packages. In
case of problems also read the libexo pkg-message.

Due to this some panel plugins and libraries will be removed since
they cannot compile anymore:

- print/xfce4-print
- x11/xfce4-quicklauncher-plugin

Update xfce4-stopwatch-plugin to 0.4.0

x11-clocks/xfce4-stopwatch-plugin: fix build on GCC architectures

Use C11 compiler:
In file included from /usr/local/include/xfce4/libxfce4util/libxfce4util.h:33,
                 from stopwatch.c:38:
/usr/local/include/xfce4/libxfce4util/xfce-kiosk.h:37: error: redefinition of
typedef 'XfceKiosk'
/usr/local/include/xfce4/libxfce4util/xfce-kiosk.h:35: error: previous
declaration of 'XfceKiosk' was here

Approved by:	mentors (implicit approval)

Welcome XFCE 4.14 to the FreeBSD ports tree

- This XFCE release uses almost exclusively gtk3, so the USES=xfce
  now defaults to gtk3
- Make x11-themes/gtk-xfce-engine an optional dependency(disabled
  by default), it only supports gtk2, so would leave miost of this
  XFCE version unthemed.
- Add Greybird as an optional and enabled dependency as a modern
  theme supporting both GTK versions and all other XFCE parts
- The xfce4-vala port is deprecated and removed. The VALA bindings
  are available in the library ports using the GIR and VAPI options
  (on by default)
- Fixed various missing library and portlint warnings (portmgr fixit
  blanket)
- Default Display Manager changed to lightdm (Thanks to woodsb02