[Input Devices > Touchpad] Touchpad page copy update

[WatchMkr]

Add subtext to the Primary button option.

Primary button
Sets the order of physical buttons

Change "Swiping" to "Gestures"

Remove "Three finger swipe any direction", Four-finger swipe left, and Four-finger swipe right (we'll add them when we add the feature).

Combine workspaces gestures into one section and update dynamically based on workspace setting.

If workspaces are set to vertical
"Four-finger swipe up/down Switch workspaces"

If workspaces are set to horizontal
"Four-finger swipe left/right Switch workspaces"