Move category editor to full pages and simplify root skeleton

app/shared/modelUtils.ts

@@ -210,16 +210,13 @@ const sanitizeSubcomponents = (components: any[]): ComponentModelStructureNode[]
 export const normalizeStructureForSave = (input: any): ComponentModelStructure => {
   const source = cloneStructure(input)
 
-  return {
+  const result: ComponentModelStructure = {
     customFields: sanitizeCustomFields(source.customFields),
     pieces: sanitizePieces(source.pieces),
     subcomponents: sanitizeSubcomponents(source.subcomponents),
-    typeComposantId: source.typeComposantId,
-    typeComposantLabel: source.typeComposantLabel,
-    modelId: source.modelId,
-    familyCode: source.familyCode,
-    alias: source.alias,
   }
+
+  return result
 }
 
 const hydrateCustomFields = (fields: any[]): any[] => {