Fix link from app label

BTCPayServer/Controllers/AppsPublicController.cs

@@ -41,12 +41,13 @@ namespace BTCPayServer.Controllers
         [HttpGet("/apps/{appId}")]
         public async Task<IActionResult> RedirectToApp(string appId)
         {
-            switch (await _AppService.GetAppInfo(appId))
+           
+            switch ((await _AppService.GetApp(appId, null)).AppType)
             {
-                case ViewCrowdfundViewModel  _:
+                case nameof(AppType.Crowdfund):
                     return RedirectToAction("ViewCrowdfund", new {appId});
                 
-                case ViewPointOfSaleViewModel  _:
+                case nameof(AppType.PointOfSale):
                     return RedirectToAction("ViewPointOfSale", new {appId});
             }
 

BTCPayServer/Services/Apps/AppService.cs

@@ -248,13 +248,13 @@ namespace BTCPayServer.Services.Apps
             }
         }
 
-        public async Task<AppData> GetApp(string appId, AppType appType, bool includeStore = false)
+        public async Task<AppData> GetApp(string appId, AppType? appType, bool includeStore = false)
         {
             using (var ctx = _ContextFactory.CreateContext())
             {
                 var query = ctx.Apps
                     .Where(us => us.Id == appId &&
-                                 us.AppType == appType.ToString());
+                                 (appType == null || us.AppType == appType.ToString()));
 
                 if (includeStore)
                 {