Flutter module added to android project overriding the android project's name with flutter module's name

I have a multi-flavoured android app and I have flutter module that I have added into my android project as a sub module. When I see recent apps section I notice the correct name i.e. UAT-app of the project as mentioned in the label added in the manifest file of the android project.

<application
    android:name=".app.App"
    android:allowBackup="false"
    android:icon="@drawable/appicon"
    android:label="UAT-app"
    android:theme="@style/Theme.myapp"
    android:requestLegacyExternalStorage="true"
    tools:replace="android:icon,android:label,android:theme,android:name">

But whenever I open any flutter screen in the app and see the recent app section I notice that the name of app changed from UAT-app to flutter-demo as this name is mentioned in the flutter module as below code

link to main.dart

Help me to show android's project name as per the app flavour instead of flutter-demo in the recent app section.