Fix FileItem ID initialization and update modification date retrieval in FileListerPOSIX

Author: jurre111

lara/views/FileManagerView.swift

@@ -9,7 +9,7 @@ import SwiftUI
 import Foundation
 
 struct FileItem: Identifiable {
-    let id = UUID()
+    let id: UUID = UUID()
     let name: String
     let path: String
     let isDirectory: Bool
@@ -46,7 +46,7 @@ class FileListerPOSIX: NSObject {
             if lstat(fullPath, &stat_buf) == 0 {
                 let isDir = (stat_buf.st_mode & S_IFDIR) != 0
                 let size = UInt64(stat_buf.st_size)
-                let modDate = Date(timeIntervalSince1970: TimeInterval(stat_buf.st_mtime))
+                let modDate = Date(timeIntervalSince1970: TimeInterval(stat_buf.st_mtimespec.tv_sec))
 
                 let item = FileItem(
                     name: name,