fix: Serialized default generic type

Author: JesusTheHun

src/types.ts

@@ -1,18 +1,18 @@
 export type EdgeWeight = number;
 
-export type Edge<Node, Props = unknown> = {
+export type Edge<Node = unknown, Props = unknown> = {
   source: Node;
   target: Node;
   weight?: EdgeWeight;
   props: Props;
 };
 
-export type Serialized<Node, LinkProps = unknown> = {
+export type Serialized<Node = unknown, LinkProps = unknown> = {
   nodes: Node[];
   links: Edge<Node, LinkProps>[];
 };
 
-export type SerializedInput<Node, LinkProps = unknown> = {
+export type SerializedInput<Node = unknown, LinkProps = unknown> = {
   nodes: ReadonlyArray<Node>;
   links: ReadonlyArray<Edge<Node, LinkProps>>;
 };