UX: Properly hide View in LS example model

When the buttons were rectangular, the old approach worked fine.  Now that the buttons have rounded corners, the View widget was peeking out from behind the buttons.

Author: TheBizzle

Code Examples/Extensions Examples/ls/Model Interactions Example.nlogox

@@ -64,7 +64,7 @@ end
 ; To the extent possible under law, Uri Wilensky has waived all
 ; copyright and related or neighboring rights to this model.</code>
   <widgets>
-    <view x="15" wrappingAllowedX="true" y="10" frameRate="30.0" minPycor="-6" height="173" showTickCounter="true" patchSize="13.0" fontSize="10" wrappingAllowedY="true" width="173" tickCounterLabel="ticks" maxPycor="6" updateMode="1" maxPxcor="6" minPxcor="-6"></view>
+    <view x="28" wrappingAllowedX="true" y="10" frameRate="30.0" minPycor="-6" height="160" showTickCounter="true" patchSize="12.0" fontSize="10" wrappingAllowedY="true" width="160" tickCounterLabel="ticks" maxPycor="6" updateMode="1" maxPxcor="6" minPxcor="-6"></view>
     <button x="15" y="115" height="105" disableUntilTicks="true" forever="true" kind="Observer" width="180" sizeVersion="0">go</button>
     <button x="15" y="10" height="105" disableUntilTicks="false" forever="false" kind="Observer" width="180" sizeVersion="0">setup</button>
   </widgets>