WIP Windows 10

Dependencies finally installed
Removal of useless code
Big cleanup in XAML styles (override colors the correct way)

Win10App/ViewModels/SettingsVm.cs

@@ -0,0 +1,16 @@
+using MediatR;
+using ModernKeePass.Application.Database.Queries.GetDatabase;
+
+namespace ModernKeePass.ViewModels
+{
+    public class SettingsVm
+    {
+        public bool IsDatabaseOpened { get; }
+
+        public SettingsVm(IMediator mediator)
+        {
+            var database = mediator.Send(new GetDatabaseQuery()).GetAwaiter().GetResult();
+            IsDatabaseOpened = database.IsOpen;
+        }
+    }
+}