feat(design): implement real-time update for exclude from recents setting

- Add OnChangedListener to excludeFromRecents setting item
- Update exclude from recents status for all app tasks when setting changes
- Use ActivityManager to access and modify app tasks

Signed-off-by: hamjin <jinham@qq.com>

Author: NoahCodeGG

design/src/main/java/com/github/kr328/clash/design/AppSettingsDesign.kt

@@ -1,5 +1,6 @@
 package com.github.kr328.clash.design
 
+import android.app.ActivityManager
 import android.content.Context
 import android.view.View
 import com.github.kr328.clash.design.databinding.DesignSettingsCommonBinding
@@ -82,7 +83,15 @@ class AppSettingsDesign(
                 icon = R.drawable.eye_off,
                 title = R.string.exclude_from_recents,
                 summary = R.string.exclude_from_recents_summary,
-            )
+            ) {
+                listener = OnChangedListener {
+                    (context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager).let { manager ->
+                        manager.appTasks.forEach { task ->
+                            task?.setExcludeFromRecents(uiStore.excludeFromRecents)
+                        }
+                    }
+                }
+            }
 
             category(R.string.service)