Reorganize category page, add drop shadows

The code to build the category page was getting a little cluttered,
to the point that it was hard to make changes. Restructured the gtk
code to make it a bit cleaner, and added new drop shadows as per
design

-Rory & Matt

[endlessm/eos-sdk#533]

1 files changed, 0 insertions, 0 deletions

diff --git a/data/assets/panel_shadow.png b/data/assets/panel_shadow.png
new file mode 100644
index 0000000..b5a2c57
--- /dev/null
+++ b/data/assets/panel_shadow.png