Fix tooltip positioning when containerPadding is set (#6577)

* Fix missing divider in Toast

* Rough fix for tooltip positioning

testing against chromatic, ideally calling updatePosition multiple times shouldnt break the positiong though...

* alternative fix without relying on initial render

* simplify fix for now

packages/@react-aria/overlays/src/useOverlayPosition.ts

@@ -171,6 +171,9 @@ export function useOverlayPosition(props: AriaPositionProps): PositionAria {
     // This is so we don't have to delay autoFocus scrolling or delay applying preventScroll for popovers
     overlay.style.top = '';
     overlay.style.bottom = '';
+    overlay.style.left = '';
+    overlay.style.right = '';
+
     Object.keys(position.position).forEach(key => overlay.style[key] = position.position[key] + 'px');
     overlay.style.maxHeight = position.maxHeight != null ?  position.maxHeight + 'px' : undefined;
 

packages/@react-spectrum/tooltip/chromatic/TooltipTrigger.stories.tsx

@@ -78,11 +78,12 @@ export const ContainerPadding50AtEdge: TooltipTriggerStory = {
       <Tooltip>Long tooltip message that just goes on and on again. But it just keeps going and going and going and going.</Tooltip>
     ]
   },
-  // padding is 231 so that it flips, this is because the tooltip has a width of 180px with the tip + 3px margin on the tooltip + 50px of container padding from this story
-  // anything less than 232px padding on the div will result in a flip, so this is how we can visually test container padding
-  // this uses slightly less than the required padding so that we account for any rounding and have a stable test
+
+  // Padding is 223 + 8px from the story margin itself = 231px of space from edge to button.
+  // Size that the tooltip takes is 180 (tooltip width) + 3 (margin on overlay) + 50 (container padding) - 1 (offset applied via tooltiptrigger) = 232px
+  // Note the above size that is calculated is slightly off, will need to update calculatePosition
   decorators: [(Story) => (
-    <div style={{width: '100%', padding: '230px'}}>
+    <div style={{width: '100%', padding: '223px'}}>
       <Story />
     </div>
   )]