Add mpv controls

.config/mpv/input.conf

@@ -0,0 +1,15 @@
+l seek +5
+h seek -5
+k seek +30
+j seek -30
+
++ add video-zoom   0.1
+- add video-zoom  -0.1
+= set video-zoom 0; set video-pan-x 0; set video-pan-y 0
+
+H add video-pan-x  0.01
+L add video-pan-x -0.01
+K add video-pan-y  0.01
+J add video-pan-y -0.01
+
+m cycle mute