Fix qtile config: consolidate terminal variable and remove unused imports

config/qtile/config.py

@@ -1,15 +1,12 @@
-from libqtile import bar, extension, hook, layout, qtile, widget
-from libqtile.config import Click, Drag, Group, Key, KeyChord, Match, Screen
+from libqtile import bar, hook, layout, qtile, widget
+from libqtile.config import Click, Drag, Group, Key, Match, Screen
 from libqtile.lazy import lazy
-from libqtile.utils import guess_terminal
 import os
 import subprocess
 
 
 mod = "mod4"
-terminal = guess_terminal()
-
-myTerm = "alacritty" 
+terminal = "alacritty" 
 
 keys = [
     Key([mod], "h", lazy.layout.left(), desc="Move focus to left"),
@@ -221,14 +218,14 @@ def make_top_bar(primary=False):
         widget.CPU(
             foreground = colors[4],
             padding = 8,
-            mouse_callbacks = {'Button1': lambda: qtile.cmd_spawn(myTerm + ' -e btop')},
+            mouse_callbacks = {'Button1': lambda: qtile.cmd_spawn(terminal + ' -e btop')},
             format="CPU: {load_percent}%",
         ),
         make_sep(),
         widget.Memory(
             foreground = colors[8],
             padding = 8,
-            mouse_callbacks = {'Button1': lambda: qtile.cmd_spawn(myTerm + ' -e btop')},
+            mouse_callbacks = {'Button1': lambda: qtile.cmd_spawn(terminal + ' -e btop')},
             format = 'Mem: {MemUsed:.0f}{mm}',
         ),
         make_sep(),