Frontend: Foundations for multi tenant frontend (#78815)

* Frontend: Foundations for multi tenant frontend

* improve manifest parsing for multi-tenant frontend (#78876)

* add test

* add test

* ??

* Updates

* Added cache

* test cleanup

* lint

* fix test

* fix error templates

* cleanup

* remove copy

* revert changes to list testdata

* comment cleanup

* prepare integration tests

* Remove integrety

---------

Co-authored-by: Ryan McKinley <ryantxu@gmail.com>

pkg/api/login_test.go

@@ -52,6 +52,11 @@ func fakeSetIndexViewData(t *testing.T) {
 			User:     &dtos.CurrentUser{},
 			Settings: &dtos.FrontendSettingsDTO{},
 			NavTree:  &navtree.NavTreeRoot{},
+			Assets: &dtos.EntryPointAssets{
+				JSFiles:  []dtos.EntryPointAsset{},
+				CSSDark:  "dark.css",
+				CSSLight: "light.css",
+			},
 		}
 		return data, nil
 	}
@@ -63,7 +68,7 @@ func fakeViewIndex(t *testing.T) {
 		getViewIndex = origGetViewIndex
 	})
 	getViewIndex = func() string {
-		return "index-template"
+		return "index"
 	}
 }