Add option to disable asking for password when launching

Current behaviour

Every time the app is launched, the user is asked to type in a password.

Feature request

Add an option to disable asking for this password.

Bonus feature

Disable asking for the password for the next t minutes/your favorite time unit.

Related issues

#2

#41 (closed)

#134 This issue asks for the option to change the password. The option to disable the password could fit in the same QML.

Edited by Júlio