Repo selector

[vgmoose]

There should be a way to manage the repos.json file from within the GUI, including editing existing repos, adding new ones, and adjusting the order/prority.

Related issues:
#11 - search GUI (for keyboard)
fortheusers/libget#7 - proper merging of multiple remotes

[vgmoose]

Not much of a priority, but still would like to get around to this at some point

[vgmoose]

The two issues in the original post are now resolved, so the only thing holding this back is implementing it in a screen.

Potentially could involve some new UI components in Chesto. (Pop up? Checkbox? List?)

[vgmoose]

Moved to gitlab's hb-appstore#3

[vgmoose]

Re-opening this in the name of dual-tracking some issues and linking to other GH ones. Also relaying this comment from @compucat:

I think this should be added to a global "Settings" page, along with other options (music? theming? easter eggs?)

Which is also desired! I made a separate issue (#111) for that though, as the actual implementation of how the repo list is managed vs the other settings will differ.