[bug]: [jsonconfig] can delete table item despite "readOnly: true"

[git-kick]

No existing issues.

• There is no existing issue for my problem.

Describe the bug

Having a table with a text item defined as readOnly, there is still an "X" in the GUI which deletes the item's content. Then, I can store the changes, i.e. I changed a readOnly item.

To Reproduce

1. iobroker url https://github.com/mcm4iob/ioBroker.jsonconfig-demo
2. iobroker add jsonconfig-demo
3. open jsonconfig-demo admin
4. go to tab "Tables"
5. press "X" right from text "Example 1"
6. save & close
7. open again and see that text "Example 1" is gone; i.e. it was deleted from the "Initialized table with fixed data"

Expected behavior

1. No "X" should be displayed at readOnly items.
2. After modifying a readOnly item, storing chages should be inhibited.

Screenshots & Logfiles

Adapter version

7.0.23

js-controller version

6.0.11

Node version

v20.17.0

Operating system

Ubuntu 24.04 LTS

Additional context

No response

[Feuer-sturm]

@git-kick please check if the issue can be closed

[git-kick]

fix confirmed (7.1.5)