fix : réparation du merge

Android/app/src/main/res/layout/main_activity.xml

@@ -1,69 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <TextView
-        android:id="@+id/question"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/question"
-        android:textSize="24sp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.206" />
-
-
-    <Button
-        android:id="@+id/button1"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginStart="56dp"
-        android:text="@string/button1"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.499" />
-
-    <Button
-        android:id="@+id/button2"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginEnd="52dp"
-        android:text="@string/button2"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.499" />
-
-    <Button
-        android:id="@+id/button3"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginStart="56dp"
-        android:text="@string/button3"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.628" />
-
-
-    <Button
-        android:id="@+id/button4"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginEnd="52dp"
-        android:text="@string/button4"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.628" />
-
-
-</androidx.constraintlayout.widget.ConstraintLayout>