Introduced Style.svg() Style.png() Style.emoji() and
Style.icon() in Style.qml. Those should be used to
set the source in Images instead of using relative
paths. Usage:
Image {
source: Style.svg("check)
....
Also moved all Singletons inside a new "utils"
folder and made it a QML module, to use
import utils 1.0 instead of relative paths
Closes#3678
Prior to this commit, communities without an image would render invisible
in the navigation bar of the application. To avoid this, we're now falling
back to our StatusLetterIdenticon component, which renders the first letter
of the community name with the color of the community.