Cannot edit Secrets/Configmap values unencoded, transparently in json files or yaml files with quoted values

[adietish]

follows up on #663
related to #852

Steps:

1. EXEC: open a new editor with the following content:

{
  "apiVersion": "v1",
  "kind": "Secret",
  "metadata": {
    "annotations": {},
    "name": "mytest34e"
  },
  "data": {
    "a": "dGVzdA==",
    "b": "dGVzdA=="
  }
}

Result:
It doesn't display inlay hint for "a" and "b". I thus cannot edit those values unencoded/transparently

Expected result:
The editor should display inlay hint for "a" and "b"..

Same is true for the following yaml with quoted values:

apiVersion: v1
kind: Secret
metadata:
  name: my-secret
type: Opaque
data:
  string-value: "b2Jpd2Fu"

[adietish]

this is fixed with a separate commit in PR #853