Refactor: fix potential panic & refactor some code

[canack]

Hi, I've made few changes, I hope it makes secrets-manager better 🧪

[vmwclabot]

@canack, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 0c117ac must be signed by [email protected]
• Commit 38fe9f2 must be signed by [email protected]
• Commit 38dfce3 must be signed by [email protected]
• Commit 1cb5e2e must be signed by [email protected]
• Commit d0b1eaf must be signed by [email protected]

[v0lkan]

Thanks for your contributions @canack

Can you also sign-off your commits for us to be able to merge them in.

Best.

[v0lkan]

Landed.

Thanks for your contributions @canack .