Restrict extension to the primary monitor

[vltr]

This PR basically adds the option to restrict the overall extension functionality to the primary screen (if enabled, default) or all screens (if disabled). This affects the window decorations, window buttons and application menu.

[jonian]

Thank you for your contribution. Maybe you can get restrict-to-primary-screen setting in the helper function to avoid repetition. In the helper file you can get the setting with:

const Settings = Unite.imports.convenience.getSettings();

Settings.getSetting('restrict-to-primary-screen')

[vltr]

Thanks, @jonian ! I was in doubt if having a setting getter inside helpers.js would be a good idea - hence why I made this way, but since I agree with you it would be better to avoid repetition.

Should I leave the signals on their respective modules? (I guess they should because they may have to work based on its value).

[jonian]

@vltr Sorry for the late response. Yes, you should leave the signals on their respective modules. They are used to apply changes without restarting the shell.

[vltr]

@jonian don't worry 😉

They are used to apply changes without restarting the shell.

That was exactly my thought. I'll update this PR shortly after.

[vltr]

Done. I had made this change in my computer yesterday already and the extension is running flawlessly (so far) 💪

[jonian]

Great! Thank you for contributing.

[jonian]

Fixes issue #61

[vltr]

Great! Thank you for contributing.

It was my pleasure 😉 Thanks a lot!

[vltr]

Oh, @jonian , I did not change any metadata or the README file because I guess the maintainers would like to do that when the next release comes to light 😃