add grid splitters to allow column resizing
MODIFY
WalletWasabi.Gui/ManagedDialogs/ManagedFileChooser.xaml
WalletWasabi.Gui/ManagedDialogs/ManagedFileChooser.xaml
<ColumnDefinition Width="150" SharedSizeGroup="Size" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="2" Text="Name" />
+ <GridSplitter Grid.Column="3" />
<TextBlock Grid.Column="4" Text="Date Modified" />
+ <GridSplitter Grid.Column="5" />
<TextBlock Grid.Column="6" Text="Type" />
+ <GridSplitter Grid.Column="7" />
<TextBlock Grid.Column="8" Text="Size" />
</Grid>
<ListBox x:Name="Files"

add grid splitters to allow column resizing