dwm: parches restartsig, preserveonrestart, statuscmd-nosignal y swallow

- Mod+Shift+r reinicia dwm sin cerrar ventanas y cada una sigue en su tag
- Clics en la barra: red (nmtui), volumen (pavucontrol, silenciar, micro,
  rueda) y bluetooth (blueman, encender/apagar)
- swallow: lo que se abre desde st sustituye a la terminal
- Reglas: flotan centradas pavucontrol, blueman, nmtui y ventanas de Firefox

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MymT1wzMgXhfC3ZwHqNAVF

dwm/config.mk

@@ -20,10 +20,11 @@ FREETYPEINC = /usr/include/freetype2
 # OpenBSD (uncomment)
 #FREETYPEINC = ${X11INC}/freetype2
 #MANPREFIX = ${PREFIX}/man
+#KVMLIB = -lkvm
 
 # includes and libs
 INCS = -I${X11INC} -I${FREETYPEINC}
-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lX11-xcb -lxcb -lxcb-res ${KVMLIB}
 
 # flags
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}