luci-base: move and rename ucitrack luci_splash.json

Move the json file to where it belongs.

Signed-off-by: Florian Eckert <redacted>

diff --git a/modules/luci-base/root/usr/share/ucitrack/luci_splash.json b/applications/luci-app-splash/root/usr/share/ucitrack/luci-app-splash.json
similarity index 100%
rename from modules/luci-base/root/usr/share/ucitrack/luci_splash.json
rename to applications/luci-app-splash/root/usr/share/ucitrack/luci-app-splash.json