Pointed thing to face pos: Use 'eye height' object property (#6754)

builtin/common/misc_helpers.lua

@@ -670,6 +670,7 @@ end
-- Returns the exact coordinate of a pointed surface
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function core.pointed_thing_to_face_pos(placer, pointed_thing)
	local eye_height = placer:get_properties().eye_height
	local eye_offset_first = placer:get_eye_offset()
	local node_pos = pointed_thing.under
	local camera_pos = placer:get_pos()
@@ -689,7 +690,7 @@ function core.pointed_thing_to_face_pos(placer, pointed_thing)
	end

	local fine_pos = {[nc] = node_pos[nc] + offset}
	camera_pos.y = camera_pos.y + 1.625 + eye_offset_first.y / 10
	camera_pos.y = camera_pos.y + eye_height + eye_offset_first.y / 10
	local f = (node_pos[nc] + offset - camera_pos[nc]) / look_dir[nc]

	for i = 1, #oc do