feat: keep screen on for download wizard

app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardActivity.kt

@@ -3,6 +3,7 @@ package im.angry.openeuicc.ui.wizard
 import android.app.assist.AssistContent
 import android.os.Bundle
 import android.view.View
+import android.view.WindowManager
 import android.view.inputmethod.InputMethodManager
 import android.widget.Button
 import android.widget.ProgressBar
@@ -316,4 +317,14 @@ class DownloadWizardActivity: BaseEuiccAccessActivity() {
 
         open fun beforeNext() {}
     }
+
+    override fun onStart() {
+        super.onStart()
+        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+    }
+
+    override fun onStop() {
+        super.onStop()
+        window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+    }
 }