refactor: remove condition tests and update file node interfaces in game session

TODO: replace "folder" with "directory"

packages/file-graph/src/index.ts

@@ -2,9 +2,9 @@ export { default as File, FileObject } from './file.js'
 export { default as FileNode } from './fileNode.js'
 export { default as FileGraph, Event } from './fileGraph.js'
 
-export interface INode {
+export interface IFileNode {
   path: string
   type: string
   discovered: boolean
-  children?: INode[]
+  children?: IFileNode[]
 }