Replace `kubectl apply` with `mesheryctl app onboard` command

[alphaX86]

Signed-off-by: Aadhitya A aadhitya864@gmail.com

Description

This PR fixes #20

Notes for Reviewers

Signed commits

• [x] Yes, I signed my commits.

[alphaX86]

Strange.... I sent the above mail comment 2-3 months ago. Seems a bug within GitHub :/ anyway the changes are already merged in other way

[gyohuangxin]

@alphaX86 OK fine, but the scripts doesn't work indeed recently. We tried to debug but have no idea, https://layer5io.slack.com/archives/CVBGPTFJN/p1665299033777169?thread_ts=1664371772.250329&cid=CVBGPTFJN, can you have a look if you have some cycles

[alphaX86]

Got it 👍

[gyohuangxin]

Got it 👍

Thank you