Upload progress blue, notification white

[williambargentball]

Sets the upload progress bar to nextcloud blue
@Mar1u5 #35

and styles the notification background.

cc @nextcloud/designers

[MariusBluem]

👍

[vincchan]

looks good to me 👍

[MariusBluem]

THX! Merging with 2x 👍 ... can you prepare a backport to stable9? 😉 @williambargent

[williambargentball]

@Mar1u5 How do I do that?

[jancborchardt]

@williambargent

git checkout stable9
git cherry-pick [your commits, via the hash]
git checkout -b stable9-branchname
git push origin stable9-branchname

:)