Fix typography and wording in README, build spec, main

build.spec

@@ -8,6 +8,7 @@
 # NO heavy dependencies (torch, PySide6, etc.) are bundled.
 
 import os
+import sys
 import glob
 
 block_cipher = None
@@ -61,7 +62,7 @@ a = Analysis(
         'psutil', 'pynvml', 'pystray', 'PIL', 'Pillow',
         'darkdetect', 'huggingface_hub', 'requests',
         'tqdm', 'onnxruntime', 'av',
-        'tkinter', 'matplotlib', 'notebook', 'IPython',
+        'matplotlib', 'notebook', 'IPython',
     ],
     win_no_prefer_redirects=False,
     win_private_assemblies=False,
@@ -91,5 +92,5 @@ exe = EXE(
     target_arch=None,
     codesign_identity=None,
     entitlements_file=None,
-    icon='assets/icon.ico',
+    icon='assets/icon.ico' if sys.platform == 'win32' else None,
 )