## Description
A ZType/Z4 will be generally (always?) be a root ZObject. It has three keys:
* Z4K1/Identity: which should NEVER be editable and is also the Zid shown in the page title
* Z4K2/Keys: which is a typed list of Z3/Key and is the main content of a type
* Z4K3/Validator: which is a reference to a function ID and should be editable (for users with the right privileges, of course)
NOTE: We should consider making different designs of this component depending on the privileges of the user seeing it.
For example, a type can only be created by a **functioneer** and only be edited by a **functionmaintainer**, so when anyone below functionmaintainer's rights is seeing or editing it:
1) should we hide the add/delete key buttons? and 2) should we hide the whole validator function field?
**Desired behavior/Acceptance criteria**
* [ ] On a first glance, it should show the list of Keys that compose the Type
* [ ] ⚠️ Consider whether type component should have expanded more or not: maybe this can be the only way to see and edit the validator function field and we can only show expansion toggle to users with privileges of functionmaintainer
* [ ] It should allow to delete keys from the list
* [ ] When removing a key from the list, it should reset the ZKey ids to sequential numbers (E.g. when removing Z999K2, it should not leave gaps like [Z999K1, Z999K3])
* [ ] It should allow to add new keys to the list
* [ ] When initializing a new key, it should set the ZKey id to the next available key (E.g. for type Z999, automatically assign the keys Z999K1, Z999K2, etc.)
**Devices and Design (URLs or screenshots)**
* Desktop: ...
* Small screens/mobile: ...
---
## Completion checklist
* [ ] Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist