Chore: Hacky first pass on generating composable kinds within grafana/schema (#64723)

* Super hacky first pass on gen types

* First sketchy pass at generated compo kinds in TS, grok-style

* Merge fix

* Create jenny for MajorsOrX for plugins

* Re-generate files with imports

* Delete invalid generated file

* Fix cue

* Update go.mod

* Update schemas

* Fix go-imports

* Regenerate cue files

---------

Co-authored-by: spinillos <selenepinillos@gmail.com>

pkg/codegen/jenny_eachmajor.go

@@ -34,6 +34,11 @@ func (j *lmox) JennyName() string {
 }
 
 func (j *lmox) Generate(kind kindsys.Kind) (codejen.Files, error) {
+	// TODO remove this once codejen catches nils https://github.com/grafana/codejen/issues/5
+	if kind == nil {
+		return nil, nil
+	}
+
 	comm := kind.Props().Common()
 	sfg := SchemaForGen{
 		Name:    comm.Name,