E2ETests: Refactor initial class structure

Tests/E2ETests/Setup.cs

@@ -0,0 +1,17 @@
+namespace Tests.E2ETests {
+    [SetUpFixture]
+    public static class Setup {
+
+        private static WinAppDriver? Driver;
+
+        [OneTimeSetUp]
+        public static void SetupWinAppDriver() {
+            Driver = new();
+        }
+
+        [OneTimeTearDown]
+        public static void TeardownWinAppDriver() {
+            Driver?.Dispose();
+        }
+    }
+}