input: move <scrollFactor> to <libinput> section

This allows per-device configuration of scroll factor (e.g. setting
different scroll factors for mice and touchpads).

docs/labwc-config.5.scd

@@ -603,9 +603,6 @@ extending outward from the snapped edge.
 *<mouse><doubleClickTime>*
 	Set double click time in milliseconds. Default is 500.
 
-*<mouse><scrollFactor>*
-	Set scroll factor. Default is 1.0.
-
 *<mouse><context name=""><mousebind button="" direction="" action=""><action>*
 	Multiple *<mousebind>* can exist within one *<context>*; and multiple
 	*<action>* can exist within one *<mousebind>*.
@@ -814,6 +811,7 @@ extending outward from the snapped edge.
     <clickMethod></clickMethod>
     <sendEventsMode></sendEventsMode>
     <calibrationMatrix></calibrationMatrix>
+    <scrollFactor>1.0</scrollFactor>
   </device>
 </libinput>
 ```
@@ -939,6 +937,9 @@ The most common matrices are:
 	visit https://wayland.freedesktop.org/libinput/doc/latest/absolute-axes.html#calibration-of-absolute-devices
 	for more information.
 
+*<libinput><scrollFactor>*
+	Set scroll factor. Default is 1.0.
+
 ## WINDOW RULES
 
 Two types of window rules are supported, actions and properties. They are

docs/rc.xml.all

@@ -330,7 +330,6 @@
 
     <!-- time is in ms -->
     <doubleClickTime>500</doubleClickTime>
-    <scrollFactor>1.0</scrollFactor>
 
     <context name="Frame">
       <mousebind button="A-Left" action="Press">
@@ -559,6 +558,7 @@
       - clickMethod [none|buttonAreas|clickfinger]
       - sendEventsMode [yes|no|disabledOnExternalMouse]
       - calibrationMatrix [six float values split by space]
+      - scrollFactor [float]
   -->
   <libinput>
     <device category="default">
@@ -575,6 +575,7 @@
       <clickMethod></clickMethod>
       <sendEventsMode></sendEventsMode>
       <calibrationMatrix></calibrationMatrix>
+      <scrollFactor>1.0</scrollFactor>
     </device>
   </libinput>