K8s: Move GrafanaMetaAccessor into grafana-apiserver and remove usage of kinds metadata (#79602)

* move GrafanaMetaAccessor into pkg/apis, add support for Spec.Title & Spec.Name

* K8s: Move GrafanaMetaAccessor (PR into another) (#79728)

* access titles

* remove title

* remove title

* remove kinds metadata accessor

* remove kinds metadata accessor

* fixes

* error handling

* fix tests

---------

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

pkg/codegen/tmpl/core_resource.tmpl

@@ -1,6 +1,8 @@
 package {{ .PackageName }}
 
 import (
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
 	"github.com/grafana/grafana/pkg/kinds"
 )
 
@@ -10,10 +12,12 @@ type K8sResource = kinds.GrafanaResource[Spec, Status]
 // NewResource creates a new instance of the resource with a given name (UID)
 func NewK8sResource(name string, s *Spec) K8sResource {
 	return K8sResource{
-		Kind:       "{{ .KindName }}",
-		APIVersion: "v{{ .Version }}-alpha",
-		Metadata: kinds.GrafanaResourceMetadata{
-			Name:        name,
+		TypeMeta: v1.TypeMeta{
+			Kind:       "{{ .KindName }}",
+			APIVersion: "v{{ .Version }}-alpha",
+		},
+		ObjectMeta: v1.ObjectMeta{
+			Name: name,
 			Annotations: make(map[string]string),
 			Labels:      make(map[string]string),
 		},