vifm: Change default image opener to timg

Changed opening images by default to do so on the commandline itself,
using timg.
Other openers can still be invoked through the `:file` command like
before.

vifm/.config/vifm/vifmrc

@@ -392,6 +392,8 @@ filextype *.avi,*.mp4,*.wmv,*.dat,*.3gp,*.ogv,*.mkv,*.mpg,*.mpeg,*.vob,
          \*.as[fx]
         \ {View using unique mplayer instance}
         \ umpv %f &,
+        \ {View in timg}
+        \ timg --title --center --clear %f; read -k 1 -s -r,
         \ {View using ffplay}
         \ ffplay -fs -autoexit %f,
         \ {View using Dragon}
@@ -425,6 +427,8 @@ fileviewer *.[1-8] man ./%c | col -b
 
 " Gif
 filextype *.gif
+        \ {View in timg}
+        \ timg --loops=2 --title --center --clear %f; read -k 1 -s -r,
         \ {Loop}
         \ mpv --loop=inf %f %i &,
 fileviewer *.gif
@@ -434,6 +438,8 @@ fileviewer *.gif
 
 " Images
 filextype *.bmp,*.jpg,*.jpeg,*.png,*.gif,*.xpm
+        \ {View in timg}
+        \ timg --title --center --clear %f; read -k 1 -s -r,
         \ {View in nsxiv directory viewer}
         \ vifm-thumbnailer %c,
         \ {View in nsxiv}
@@ -447,9 +453,7 @@ filextype *.bmp,*.jpg,*.jpeg,*.png,*.gif,*.xpm
         \ {View in gpicview}
         \ gpicview %c,
 fileviewer *.bmp,*.jpg,*.jpeg,*.png,*.gif,*.xpm
-        \ kitty +kitten icat --silent --transfer-mode=stream --place=%pwx%ph@%pxx%py %c %N
+        \ timg -g%pwx%ph -pq %c
-        \ %pc
-        \ kitty +kitten icat --clear --silent %pd
 
 " OpenRaster
 filextype *.ora