Use GNOME's icon development kit icon for rewind

[thibaultamartin]

Currently the button used to rewind is not very explicit.

Jimmac, the designer who already submitted the new logo for Cozy, has added an SVG icon to GNOME's icon development kit to make the rewind more explicit.

You can easily browse the kit and extract the SVG to replace the current icon for a more explicit one.

I tried to do it by myself but didn't manage to really understand how gresources are managed with Cozy. If you're available either on Matrix or IRC I'd be happy to discuss it together and send a PR your way :)

[thibaultamartin]

Here's a preview in PNG since github doesn't allow me to upload a SVG file

[geigi]

Thanks! This icon is a much better fit :)

I'm not yet on matrix or IRC but I'll make an account and let you know next week :)

[geigi]

Cozy has now a customizable rewind duration. I think the icon from the dev kit might be irritating now when it shows a number in it. But it seems like there isn't a generic version available yet.

[rdbende]

Cozy currently uses object-rotate-right-symbolic and object-rotate-left-symbolic for backwards and forwards seeking, which is not good, as an icon theme may radically change its look, destroying the metaphor. It would be better to use media-seek-forward-symbolic and media-seek-backward-symbolic instead, or bundle these icons with Cozy, so icon themes can't break it.