clean up system

packages/system/src/constants.ts

@@ -1,4 +1,4 @@
-import { CoordinateExtent, HandleType, XYPosition } from './types';
+import { CoordinateExtent, HandleType } from './types';
 
 export const errorMessages = {
   error001: () =>
@@ -36,9 +36,3 @@ export const infiniteExtent: CoordinateExtent = [
 ];
 
 export const elementSelectionKeys = ['Enter', ' ', 'Escape'];
-export const arrowKeyDiffs: Record<string, XYPosition> = {
-  ArrowUp: { x: 0, y: -1 },
-  ArrowDown: { x: 0, y: 1 },
-  ArrowLeft: { x: -1, y: 0 },
-  ArrowRight: { x: 1, y: 0 },
-};

packages/system/src/styles/init.css

@@ -123,11 +123,6 @@
   }
 }
 
-.xy-flow__edge-wrapper {
-  position: absolute;
-  overflow: visible;
-}
-
 .xy-flow__edge {
   pointer-events: visibleStroke;
 
@@ -438,7 +433,3 @@ svg.xy-flow__connectionline {
     }
   }
 }
-
-.xy-flow__marker {
-  position: absolute;
-}