feat(node-toolbar): remove css from node-toolbar component, set version to 1.0.0

packages/node-toolbar/src/NodeToolbar.tsx

@@ -82,8 +82,9 @@ function NodeToolbar({
   const nodeRect: Rect = getRectOfNodes([node], nodeOrigin);
 
   const wrapperStyle: CSSProperties = {
+    position: 'absolute',
     transform: getTransform(nodeRect, transform, position, offset),
-    zIndex: node[internalsSymbol]?.z,
+    zIndex: (node[internalsSymbol]?.z || 1) + 1,
     ...style,
   };
 

packages/node-toolbar/src/style.css

@@ -1,4 +0,0 @@
-.react-flow__node-toolbar {
-  position: absolute;
-  z-index: 1000;
-}