Add Password/Pin protection to the app

[Jacoblightning]

Checklist

• [X] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• [X] I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• [X] I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• [X] I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• [X] This issue contains only one feature request.
• [X] I have read and understood the contribution guidelines.
• [ ] I optionally donated to support the Fossify mission.

Feature description

It would be nice if there were an option to password protect the application or just the dialer in the app settings as there is in other fossify apps. (E.g. messages, gallery)

Why do you want this feature?

I would like to be able to separately lock my phone and my dialer app. This would help if someone needs to borrow my phone and I don't want them viewing my calls.

Additional information

No response