Refactor imports in wxCCXXPlot.py for clarity and consistency

  - Group imports by module
  - Remove redundant imports
  - Use explicit import statements
  - Maintain alphabetical order

DisplayCAL/wxCCXXPlot.py

@@ -4,22 +4,25 @@
 import os
 import sys
 
+from DisplayCAL import (
+    CGATS,
+    ICCProfile as ICCP,
+    colormath,
+    config,
+    localization as lang,
+    wxenhancedplot as plot,
+)
 from DisplayCAL.argyll_instruments import get_canonical_instrument_name, instruments
 from DisplayCAL.config import getcfg
 from DisplayCAL.debughelpers import UnloggedError
-from DisplayCAL.meta import name as appname
+from DisplayCAL.meta import (
+    name as appname,
+)
 from DisplayCAL.util_str import make_filename_safe
 from DisplayCAL.worker_base import get_argyll_util
-from DisplayCAL.wxaddons import wx
 from DisplayCAL.wxLUTViewer import LUTCanvas
+from DisplayCAL.wxaddons import wx
 from DisplayCAL.wxwindows import FlatShadedButton, show_result_dialog
-from DisplayCAL import CGATS
-from DisplayCAL import colormath
-from DisplayCAL import config
-from DisplayCAL import ICCProfile as ICCP
-from DisplayCAL import localization as lang
-from DisplayCAL import wxenhancedplot as plot
-
 
 BGCOLOUR = "#101010"
 FGCOLOUR = "#999999"