chore : Deprecating FeatureToggles.IsEnabled (#113062)

* Deprecating features.IsEnabled

* add one more nolint

* add one more nolint

* Give better hints to devs in the deprecation message of IsEnabledGlobally

* adding more doc strings

* fix linter after rebase

* Extend deprecation message

pkg/services/annotations/accesscontrol/accesscontrol.go

@@ -61,6 +61,7 @@ func (authz *AuthService) Authorize(ctx context.Context, query annotations.ItemQ
 	scopeTypes := annotationScopeTypes(scopes)
 	_, canAccessOrgAnnotations := scopeTypes[annotations.Organization.String()]
 	_, canAccessDashAnnotations := scopeTypes[annotations.Dashboard.String()]
+	//nolint:staticcheck // not yet migrated to OpenFeature
 	if authz.features.IsEnabled(ctx, featuremgmt.FlagAnnotationPermissionUpdate) {
 		canAccessDashAnnotations = true
 	}
@@ -122,6 +123,7 @@ func (authz *AuthService) dashboardsWithVisibleAnnotations(ctx context.Context,
 	}
 
 	filterType := searchstore.TypeDashboard
+	//nolint:staticcheck // not yet migrated to OpenFeature
 	if authz.features.IsEnabled(ctx, featuremgmt.FlagAnnotationPermissionUpdate) {
 		filterType = searchstore.TypeAnnotation
 	}