[Umbrella] Helm Chart improvements

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

### Search before asking

- [X] I have searched in the [issues](https://github.com/apache/kyuubi/issues) and found no similar issues.

### Describe the proposal

This is a umbrella ticket to track all improvements of Kyuubi Helm Chart, special thanks to
@dnskr for his efforts.

### Task list

- #4288
- #3976
- #3980
- #4004
- #4034
- #3831
- #4043
- #4060
- #4147
- #4313
- #4314
- #4484
- #4561
- #4589
- #4605
- #4606

### Are you willing to submit PR?

- [ ] Yes. I would be willing to submit a PR with guidance from the Kyuubi community to improve.
- [ ] No. I cannot submit a PR at this time.

Start by reviewing the linked task issues, especially the entries in the task list, to identify one concrete Helm Chart improvement that is still unresolved. Confirm the selected task's scope and acceptance criteria in its issue; done means that task is completed and its corresponding checklist item can be closed.

Written by the indexing model from the issue text.