Use Dictionary.ContainsValue to replace Linq.Any (#4650)

code/TemplateStudioForWPF/Templates/_comp/MT/Project/Services/PageService.cs

@@ -49,7 +49,7 @@ public class PageService : IPageService
             }
 
             var type = typeof(V);
-            if (_pages.Any(p => p.Value == type))
+            if (_pages.ContainsValue(type))
             {
                 throw new ArgumentException($"This type is already configured with key {_pages.First(p => p.Value == type).Key}");
             }

code/TemplateStudioForWinUICs/Templates/_comp/MT/Project/Services/PageService.cs

@@ -41,7 +41,7 @@ public class PageService : IPageService
             }
 
             var type = typeof(V);
-            if (_pages.Any(p => p.Value == type))
+            if (_pages.ContainsValue(type))
             {
                 throw new ArgumentException($"This type is already configured with key {_pages.First(p => p.Value == type).Key}");
             }