fix more pict positions that will cause out-of-bounds sampling

rsrc/dialogs/basic-button.xml

@@ -4,7 +4,7 @@
 <dialog escbtn='no' defbtn='yes'>
 	<button name='no' type='regular' def-key='n' top='39' left='178'>No</button>
 	<button name='yes' type='regular' def-key='y' top='39' left='244'>Yes</button>
-	<pict type='dlog' num='11' top='9' left='9'/>
+	<pict type='dlog' num='11' top='8' left='9'/>
 	<text top='4' left='51' width='251' height='32'>
 		There is a large button here, waiting to be pressed.
 		Do you?

rsrc/dialogs/basic-lever.xml

@@ -2,7 +2,7 @@
 <!-- NOTE: This file should be updated to use relative positioning the next time it changes. -->
 <?xml-stylesheet href="dialog.xsl" type="text/xsl"?>
 <dialog escbtn='leave' defbtn='pull'>
-	<pict type='dlog' num='9' top='9' left='8'/>
+	<pict type='dlog' num='9' top='8' left='8'/>
 	<button name='leave' type='regular' top='46' left='176'>Leave</button>
 	<button name='pull' type='regular' top='46' left='244'>Pull</button>
 	<text top='4' left='50' width='253' height='43'>There is a stout wooden lever protruding from the ground here. Pull it?</text>

rsrc/dialogs/basic-portal.xml

@@ -4,7 +4,7 @@
 <dialog escbtn='no' defbtn='yes'>
 	<button name='no' type='regular' def-key='n' top='39' left='178'>No</button>
 	<button name='yes' type='regular' def-key='y' top='39' left='244'>Yes</button>
-	<pict type='dlog' num='22' top='9' left='9'/>
+	<pict type='dlog' num='22' top='8' left='9'/>
 	<text top='4' left='51' width='251' height='32'>
 		There is a glowing teleporter here.
 		Do you step through?

rsrc/dialogs/basic-trap.xml

@@ -4,7 +4,7 @@
 <dialog escbtn='no' defbtn='yes'>
 	<button name='no' type='regular' def-key='n' top='39' left='178'>No</button>
 	<button name='yes' type='regular' def-key='y' top='39' left='244'>Yes</button>
-	<pict type='dlog' num='27' top='9' left='9'/>
+	<pict type='dlog' num='27' top='8' left='9'/>
 	<text top='4' left='51' width='251' height='32'>
 		You think you've found a trap.
 		Do you try to disarm it?