[Flutter] 안드로이드 앱 이름 설정, 변경

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.company.app">
   <application
        android:label="앱이름"
        android:name="${applicationName}"
        android:icon="@mipmap/launcher_icon">
        <activity
            android:name=".MainActivity"
            android:exported="true"
            ..
            ..
            ..
            ..
            ..

<application android:label="앱이름"....