add luci-theme-kucat

Function Introduction
Beauty lies in coolness, born from action
A navigation bar with 5 shortcut keys
Adapt to all versions from 18.06 to 23.05 and optimize most plugins
A large number of optimizations have been made for mobile phones, and there are basically no misalignment or other phenomena
There is a matching theme setting tool that can adjust the light and dark modes, navigation key content, background image, desktop image, and multiple color schemes to choose from.
Integrate light and dark modes.

Signed-off-by: SirPdboy <63764630+sirpdboy@users.noreply.github.com>

themes/luci-theme-kucat/Makefile

@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2019-2023 The Sirpdboy Team <herboy2008@gmail.com>    
+#
+# This is free software, licensed under the Apache License, Version 2.0 .
+#
+
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:=Kucat Theme
+PKG_NAME:=luci-theme-kucat
+LUCI_DEPENDS:=
+PKG_VERSION:=2.3.9
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature