GeneratorLogin/Views/GeneratePage.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="LoginGenerator.GeneratePage"
             xmlns:vm="using:LoginGenerator.ViewModels"
			       x:DataType="vm:MainWindowViewModel"
             Background="{Binding GeneratePageVM.Background}"
             >
  <Grid>
    <StackPanel  VerticalAlignment="Center" >
      <TextBlock FontSize="24" FontWeight="Bold" HorizontalAlignment="Center">АССИСТЕНТ РЕГИСТРАЦИИ</TextBlock>
      <StackPanel>
        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
          <TextBox Width="615" Watermark="Введите ФИО" Text="{Binding GeneratePageVM.FIO}" Name="FIO"/>
          <Button Margin="10 0 0 0" Width="75" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="🌗" Command="{Binding GeneratePageVM.SwitchTheme}"/>
        </StackPanel>

        <StackPanel Margin="0 10 0 0" HorizontalAlignment="Center" Orientation="Horizontal">
          <Button Width="167" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="Ф" Command="{Binding GeneratePageVM.OSurnameCopy_Click}"/>
          <Button Width="167" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Margin="10 0 0 0" Content="И" Command="{Binding GeneratePageVM.ONameCopy_Click}"/>
          <Button Width="167" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Margin="10 0 0 0" Content="О" Command="{Binding GeneratePageVM.OPatronymicCopy_Click}" />
          <Button Width="167" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Margin="10 0 0 0" Content="ИО" Command="{Binding GeneratePageVM.ONamePatronymicCopy_Click}"/>
        </StackPanel>

        <StackPanel Margin="0 10 0 0" HorizontalAlignment="Center" Orientation="Horizontal">
          <TextBox Width="529" Watermark="Логин" Text="{Binding GeneratePageVM.Login}" Name="Login"/>
          <Button Margin="10 0 0 0" Width="75" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="©" Command="{Binding GeneratePageVM.LoginCopy}"/>
          <Button Margin="10 0 0 0" Width="75" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="↻" Command="{Binding GeneratePageVM.RegenLogin}"/>
        </StackPanel>

        <StackPanel Margin="0 10 0 0" HorizontalAlignment="Center" Orientation="Horizontal">
          <TextBox Width="529" Watermark="Пароль" Name="Pass" Text="{Binding GeneratePageVM.Pass}"/>
          <Button Margin="10 0 0 0" Width="75" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="©" Command="{Binding GeneratePageVM.PassCopy}"/>
          <Button Margin="10 0 0 0" Width="75" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="↻" Command="{Binding GeneratePageVM.RegenPass}"/>
        </StackPanel>

        <StackPanel Margin="0 10 0 0" Orientation="Horizontal" HorizontalAlignment="Center">
          <Button Width="226" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="Записать данные" Command="{Binding GeneratePageVM.WriteIn}"/>
          <Button Width="226" Margin="10 0 0 0" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="Скопировать данные" Command="{Binding GeneratePageVM.CopyAll_Click}"/>
          <Button Width="226" Margin="10 0 0 0" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="Сгенерировать данные"  Command="{Binding GeneratePageVM.GenerateAll}"/>
        </StackPanel>

        <StackPanel Margin="0 10 0 0" HorizontalAlignment="Center">
          <Button Width="700" HorizontalContentAlignment="Center" FontWeight="Bold" BorderBrush="Black" Background="White" Foreground="#545454" Content="Посмотреть данные пользователей" Command="{Binding ViewUsersData}"/>
        </StackPanel>


      </StackPanel>


    </StackPanel>
  </Grid>
  
  
</UserControl>