Make falkon icon a real SVG
Summary: A falkon icon was recently commited to Breeze that was simply a PNG inside of an SVG. This patch uses actual vector graphics and adds a 45 degree shadow under the bird to make it more Breeze-like.
Test Plan:
Reviewers: VDG, Falkon, abetts, drosca
Reviewed By: Falkon, drosca
Subscribers: ngraham, kde-frameworks-devel
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D21511