Stop consuming all the pagination in idmapper

[brmzkw]

To resolve a name identifier (koyeb app get appname) or a short-uuid identifier (koyeb app get <short uuid>) to a full-uuid, the idmapper consumes performs a list query, consumes all the pagination and store the items in a tree.

This behavior doesn't scale when there are many resources.

Instead, we need to:

• update our APIs, to allow filtering items by name or short uuid
• update the idmapper to use these new filters instead of consuming all the pagination, and doing the filter locally