fix: clear stale terminal notification when a new flow starts

app/src/main/java/com/example/research/common/progress/DictionaryProgressPresenter.kt

@@ -32,6 +32,7 @@ class DictionaryProgressPresenter(
 
     fun beginFlow() {
         terminalActive = false
+        notifications.cancelTerminalNotification()
     }
 
     override fun showImportSuccess() {

app/src/main/java/com/example/research/common/progress/NotificationPort.kt

@@ -6,5 +6,6 @@ interface NotificationPort {
     fun showDownloadSuccess()
     fun showError()
     fun cancelProgressNotification()
+    fun cancelTerminalNotification()
     fun hasActiveProgressNotification(): Boolean
 }

app/src/main/java/com/example/research/common/util/NotificationHelper.kt

@@ -111,6 +111,10 @@ class NotificationHelper(private val context: Context) : NotificationPort {
         notificationManager.cancel(NOTIFICATION_ID)
     }
 
+    override fun cancelTerminalNotification() {
+        notificationManager.cancel(TERMINAL_NOTIFICATION_ID)
+    }
+
     override fun hasActiveProgressNotification(): Boolean = lastNotificationKey != 0
 
     fun showUnifiedProgressNotification(