The launch screen is stretched on some devices

[helloagain-dev]

The current implementation of the launch screen layout stretches the image to fit the screen. As there are more and more devices that do not fit the pregenerated images it looks distorted on some of them.

A phone that is affected is the Huawei P20 Lite (https://www.gsmarena.com/huawei_p20_lite-9098.php) which has a screen resolution of 1080 x 2280px.

A launch screen layout that keeps the aspect ratio would fix this issue.

This is an example of launch_screen.xml that would fix this issue and has been tested by us for a while now:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:src="@drawable/splash"
               android:scaleType="centerCrop"
    />
</LinearLayout>