feat(types): Add GraphEdge type

* GraphEdges are edges that have been parsed and have a sourceTargetNode property

Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>

src/types/edge.ts

@@ -1,6 +1,7 @@
 import { Component, CSSProperties, DefineComponent } from 'vue'
 import { ArrowHeadType, ElementId, Position } from './flow'
 import { EdgeTextProps } from './components'
+import { SourceTargetNode } from './node'
 
 export interface Edge<T = any> {
   id: ElementId
@@ -32,6 +33,10 @@ export interface Edge<T = any> {
   isHidden?: boolean
 }
 
+export interface GraphEdge<T = any> extends Edge<T> {
+  sourceTargetNodes: SourceTargetNode
+}
+
 export interface EdgeProps<T = any> extends Edge<T> {
   sourceX: number
   sourceY: number