vectorize library and preferences icons

[Be]

The library and preferences icons are still PNG images. They should be SVGs.

[jus (jus)]

No prob, just save from icon template

https://github.com/mixxxdj/mixxx/blob/master/res/images/templates/ic_template_library_and_preferences.svg <https://github.com/mixxxdj/mixxx/blob/master/res/images/templates/ic_template_library_and_preferences.svg>

 IIRC svg rendering was not possible back then when i drafted the first batch.

> On Jan 14, 2017, at 00:31, Daniel Schürmann <email address hidden> wrote:
>
> ** Changed in: mixxx
> Status: New => Confirmed
>
> ** Changed in: mixxx
> Importance: Undecided => Wishlist
>
> --
> You received this bug notification because you are a member of Mixxx
> Development Team, which is subscribed to Mixxx.
> https://bugs.launchpad.net/bugs/1656443
>
> Title:
> vectorize library and preferences icons
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mixxx/+bug/1656443/+subscriptions

[ronso0 (ronso0)]

https://github.com/mixxxdj/mixxx/pull/1774

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/8758