feat: add option to hide Submap module if there is no submap active

[ashton]

Adding an option to settings and hiding bar's submap module, if there is no submap active.

Implements #1076 alternative

[Jas-SinghFSU]

Great work! Could you please add the GUI config option to src/components/bar/settings/config.tsx:

                <Option
                    opt={options.bar.customModules.submap.hideOnDefault}
                    title="Hide On Default"
                    subtitle="Hides the SubMap module if it is on the default submap."
                    type="boolean"
                />

[Jas-SinghFSU]

And can you run npm run lint:fix to resolve the linter issues as well please 😄