feat(app-binding): lier les presets aux applications

Ajoute la configuration des associations application/preset, le service de suivi du focus, l'intégration GUI et les fichiers d'installation nécessaires.

Ajoute les tests unitaires ciblés des bindings, du service de focus, des migrations et des composants GUI associés.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

inputremapper/gui/user_interface.py

@@ -19,6 +19,7 @@
 
 
 """User Interface."""
+
 from typing import Dict, Callable
 
 from gi.repository import Gtk, GtkSource, Gdk, GObject
@@ -49,6 +50,7 @@ from inputremapper.gui.components.editor import (
     RequireActiveMapping,
     GdkEventRecorder,
 )
+from inputremapper.gui.components.app_bindings import AppBindingsEditor
 from inputremapper.gui.components.main import Stack, StatusBar
 from inputremapper.gui.components.presets import PresetSelection
 from inputremapper.gui.controller import Controller
@@ -203,6 +205,15 @@ class UserInterface:
             self.get("expo-scale"),
         )
 
+        AppBindingsEditor(
+            message_broker,
+            controller,
+            self.get("app_binding_enabled_switch"),
+            self.get("app_binding_status_label"),
+            self.get("app_bindings_listbox"),
+            self.get("app_binding_add_button"),
+        )
+
         GdkEventRecorder(self.window, self.get("gdk-event-recorder-label"))
 
         RequireActiveMapping(