Make error notification test file names/layout consistent with others

Author: SteveSandersonMS

src/Components/test/E2ETest/Tests/ErrorNotificationServerSideTest.cs renamed to src/Components/test/E2ETest/ServerExecutionTests/ServerErrorNotificationTest.cs

@@ -5,16 +5,15 @@
 using Microsoft.AspNetCore.Components.E2ETest.Infrastructure.ServerFixtures;
 using Microsoft.AspNetCore.Components.E2ETest.ServerExecutionTests;
 using Microsoft.AspNetCore.E2ETesting;
-using OpenQA.Selenium;
 using Xunit;
 using Xunit.Abstractions;
 
 namespace Microsoft.AspNetCore.Components.E2ETest.Tests
 {
     [Collection("ErrorNotification")] // When the clientside and serverside tests run together it seems to cause failures, possibly due to connection lose on exception.
-    public class ErrorNotificationServerSideTest : ErrorNotificationClientSideTest
+    public class ServerErrorNotificationTest : ErrorNotificationTest
     {
-        public ErrorNotificationServerSideTest(
+        public ServerErrorNotificationTest(
             BrowserFixture browserFixture,
             ToggleExecutionModeServerFixture<Program> serverFixture,
             ITestOutputHelper output)

src/Components/test/E2ETest/Tests/ErrorNotificationClientSideTest.cs renamed to src/Components/test/E2ETest/Tests/ErrorNotificationTest.cs

@@ -13,9 +13,9 @@
 namespace Microsoft.AspNetCore.Components.E2ETest.Tests
 {
     [Collection("ErrorNotification")] // When the clientside and serverside tests run together it seems to cause failures, possibly due to connection lose on exception.
-    public class ErrorNotificationClientSideTest : ServerTestBase<ToggleExecutionModeServerFixture<Program>>
+    public class ErrorNotificationTest : ServerTestBase<ToggleExecutionModeServerFixture<Program>>
     {
-        public ErrorNotificationClientSideTest(
+        public ErrorNotificationTest(
             BrowserFixture browserFixture,
             ToggleExecutionModeServerFixture<Program> serverFixture,
             ITestOutputHelper output)