kindsys: Adapt to new flattened lineage syntax in Thema (#68034)

* Update all core kinds to flattened lineages

* Regen Go types, without any

* Regen Go types, s/interface{}/any/

* Update generated core typescript

* Update generate docs

* Fix defaults gen in veneer index jenny

* Flatten plugindef lineage

* Convert all plugin kinds to flattened form

* Switch back to interface{} for now

* Switch to fs.Sub in plugin DeclParser

* Mostly undesirable codegen changes, to be fixed

* Update mod and sum

* Update pfs tests to flattened lineages

* Update thema to latest, regen docs

pkg/plugins/manager/testdata/valid-model-panel/composable.cue

@@ -1,15 +1,14 @@
 package grafanaplugin
 
 composableKinds: PanelCfg: lineage: {
-	seqs: [
+	schemas: [
 		{
-			schemas: [
-				{
-					Options: {
-						foo: string
-					} @cuetsy(kind="interface")
-				},
-			]
+			version: [0, 0]
+			schema: {
+				Options: {
+					foo: string
+				} @cuetsy(kind="interface")
+			}
 		},
 	]
 }