Updates NsCDE to the latest release, and backports a patch fixing an Xorg issue causing fvwm2 to freeze

Upstream notes:

This release adds some features, 3rd party integrations, fixes bugs etc. Highlights are:

• Add kcalc colors tom match dtcalc (colormgr.local)
• Fix rofi and dunst themes to work with new versions of programs
• NsCDE .desktop files renamed to conform to standards
• Front Panel on top of the screen possibility implemented. This can be achieved with "InfoStoreAdd frontpanel.on.top 1" in ~/.NsCDE/NsCDE.conf.
• Icon theme updates
• CSS: support firefox 100+
• Consolidate GTK2 and GTK3 engine css files, add some fixes and match colors more correctly
• Added Common User Access (CUA) key bindings. This is now default key binding set in NsCDE. Old key bindings scheme now called "nscde1x" can be used in ~/.NsCDE/NsCDE.conf with the "InfoStoreAdd kbd_bind_set nscde1x" - this can also be configured now with Keyboard Style Manager
• Keyboard Style Manager addons, Mouse Style Manager fixes
• Building: add --with-python-shebang="STRING" in configure to allow user to override strange alternatives managers on some systems
• Reorganize f_PolkitAgent to be more portable and stable
• Kvantum: Reshape in more Motif style Qt5 Combo Box
• More Firefox CSS updates
• Documentation updates for all of the above