tests: start fixing cypress tests.

packages/core/src/components/UserSelection/index.tsx

@@ -178,7 +178,7 @@ const UserSelection = memo(({ isSelectionMode, onClick, onContextMenu, onWheel,
         );
 
   return (
-    <div className="react-flow__selectionpane react-flow__container" {...eventHandlers} ref={container}>
+    <div className="react-flow__pane react-flow__container" {...eventHandlers} ref={container}>
       {children}
       {userSelectionActive && userSelectionRect && (
         <div

packages/core/src/styles/init.css

@@ -26,7 +26,7 @@
   z-index: 4;
 }
 
-.react-flow__selectionpane {
+.react-flow__pane {
   z-index: 5;
 }