[UIFe] New Ubuntu Studio logo, additional wallpaper for Jammy

[ Explanation ]

As with other official flavors of Ubuntu, Ubuntu Studio is a part of the overarching Ubuntu project. With the revelation of the new Ubuntu logo[1] set to take effect with the release of Ubuntu 22.04 LTS, Ubuntu Studio wishes to keep the branding of the flavor consistent, mirroring that of Ubuntu. It is understood that the flavors do not have to change their logos, but branding consistency is of importance in these matters.

Unfortunately, the new Ubuntu logo was revealed just two days prior to User Interface Freeze (UIF), leaving flavors very little time to adapt in time for the freeze. Such changes to icons and logos create a definite change to the user interface. However, these changes do not change anything for these translations, so nothing else changes.

[ Justification ]

As mentioned in the previous paragraph, nothing in these changes anything for translations as these are all merely graphical changes. Additionally, this would lower maintenance required to keep from having to maintain two separate sets of logo variations for the next three years.

Instead this would keep branding consistent with Ubuntu, and lead the way for other flavors to give inspiration for how other flavors may adapt their logos accordingly. Seeing as how Ubuntu Studio is about artwork (of all kinds), it does make sense for it to be the first to do a major artwork-related change.

[ Other Information ]

Attached you will find examples of the logo changes. Additionally, the kickoff launcher (think start menu) button will become a square version of what already existed, as will any "distributor-logo" icons.

[1] https://ubuntu.com/blog/a-new-look-for-the-circle-of-friends