rofi-mediaplayer: grab keyboard as soon as possible

Otherwise, we may miss the shortcut input. With -no-lazy-grab, rofi
grabs the keyboard early and wait for half a second before giving up.
Without, it will try for 0 second. So, if i3 still has the grab, it
will try again every millisecond for 5 seconds. However, this needs to
get scheduled after everything else, so in practice, this can take
some time. I get better results with -no-lazy-grab.

Also, we could use --release from i3. In this case, we are guaranteed
that rofi can grab the keyboard during the first try. But, after
trying a bit, I think this is still better with -no-lazy-grab: the
shell script needs to be executed, rofi needs to be executed. It's
better to do that while the user did not depress the key yet.

bin/rofi-mediaplayer

@@ -5,7 +5,7 @@
 if [ -z "${ROFI_OUTSIDE}" ]; then
     export mediaplayer=$1
     export Mediaplayer=$(echo $1 | sed -E 's/(.)/\U\1/')
-    exec rofi -show-icons -no-custom -modi m:$0 -show m \
+    exec rofi -no-lazy-grab -show-icons -no-custom -modi m:$0 -show m \
               -kb-select-1 Super+z \
               -kb-select-2 Super+x \
               -kb-select-3 Super+c \