This PR renames the OK button to Continue and adds a Cancel button to the configuration options pop-up.
This feature will give the user an option to abort opening the configuration file if they want to. This is an essential helpful feature that was missing in the master branch.
In some windows managers such as Windows I3. The exit button at the top right corner is missing. So this feature becomes crucial there. And even when the exit button is there, it doesn’t prevent the opening of the configuration file even when pressed.
Additionally, it will always be possible to close using Keyboard Shortcut. This PR helps accessibility for those who need to use a mouse.