Pause X screen blanking while an inhibit is active

Browsers don't pause X blanking themselves, so the screen still went
black after 10 minutes even with xautolock disabled. Use
XScreenSaverSuspend (MIT-SCREEN-SAVER) instead of xset: no global
setting is changed, and the X server ends the pause on its own if the
daemon exits or crashes. The suspend also holds off DPMS.

Add libx11 and libxss to depends.

PKGBUILD

@@ -9,7 +9,9 @@ pkgdesc='Honor org.freedesktop.ScreenSaver inhibit requests by disabling xautolo
 arch=('any')
 url="https://git.shouldnt.work/fuxino/${pkgname}"
 license=('GPL-3.0-or-later')
-depends=('python'
+depends=('libx11'
+         'libxss'
+         'python'
          'python-gobject'
          'xautolock')
 makedepends=('git')