style: enforce consistent codestyle via ruff config and auto-fixes

- Configure ruff: isort, pyupgrade, bugbear, flake8 rules
- Auto-fix import sorting, redundant parens, exception chaining
- Remove from __future__ import annotations (Python 3.13+)
- Convert debug print() to logger calls
- Fix typo applicaiton → application in icon_resolver
- Remove bare returns in animator setters
- Move TYPE_CHECKING imports to runtime where used at runtime

src/window/controlcenter/expanded_player.py

@@ -13,9 +13,9 @@ from fabric.widgets.wayland import WaylandWindow as Window
 from services.mpris import PlayerManager, PlayerService
 from utils.utils import svg_file
 from window.controlcenter.player import (
+    PLAYER_FALLBACK_ART,
     apply_player_art,
     get_shared_mpris_manager,
-    PLAYER_FALLBACK_ART,
 )
 
 
@@ -667,9 +667,10 @@ class PlayerBox(Box):
                 self.play_pause_icon.dynamic_file(icon_file)
             else:
                 # Fallback if play_pause_icon isn't available
-                from utils.utils import get_relative_path
                 import os
 
+                from utils.utils import get_relative_path
+
                 self.play_pause_button.get_child().set_from_file(
                     os.path.join(get_relative_path("assets/icons/"), icon_file)
                 )

src/window/controlcenter/per_app_volume.py

@@ -3,10 +3,11 @@ from fabric.widgets.box import Box
 from fabric.widgets.button import Button
 from fabric.widgets.image import Image
 from fabric.widgets.label import Label
-from shared.widgets.flat_scale import FlatScale
 from fabric.widgets.scrolledwindow import ScrolledWindow
 from fabric.widgets.separator import Separator
 
+from shared.widgets.flat_scale import FlatScale
+
 # Local imports
 from utils.roam import audio_service
 
@@ -208,9 +209,10 @@ class PerAppVolumeControl(Box):
             for i, app in enumerate(applications):
                 if hasattr(app, "name") and hasattr(app, "volume"):
                     app_widget = self._create_app_control(app)
-                    self.apps_container.children = list(
-                        self.apps_container.children
-                    ) + [app_widget]
+                    self.apps_container.children = [
+                        *list(self.apps_container.children),
+                        app_widget,
+                    ]
 
                     # Add separator between apps (except for last one)
                     if i < len(applications) - 1:
@@ -218,9 +220,10 @@ class PerAppVolumeControl(Box):
                             orientation="horizontal",
                             style_classes="app-volume-separator",
                         )
-                        self.apps_container.children = list(
-                            self.apps_container.children
-                        ) + [separator]
+                        self.apps_container.children = [
+                            *list(self.apps_container.children),
+                            separator,
+                        ]
 
                     self._app_widgets[app.name] = (app_widget, app)
         else: