fix build process: use absolute paths for icon folder in PyInstaller configuration to prevent runtime errors

nice_uploader.spec

@@ -1,11 +1,16 @@
 # -*- mode: python ; coding: utf-8 -*-
 
+import os
+from pathlib import Path
+
+here = Path(__file__).resolve().parent
+project_root = here
 
 a = Analysis(
     ['nice.py'],
-    pathex=[],
+    pathex=[str(project_root)],
     binaries=[],
-    datas=[('icon', 'icon'), ('icon/icon1.png', 'icon')],
+    datas=[(str(project_root / 'icon'), 'icon'), (str(project_root / 'icon' / 'icon1.png'), 'icon')],
     hiddenimports=['bs4', 'requests', 'nicegui', 'pynng'],
     hookspath=[],
     hooksconfig={},