breaking: deprecate zenflesh in favor of zenbones bg=dark

lua/zenflesh/init.lua

@@ -1,4 +1,5 @@
 local generator = require "zenbones.specs"
 local p = require "zenflesh.palette"
 
+vim.notify("zenflesh is deprecated. Please use zenbones and set background=dark.", vim.log.levels.WARN, { title = "zenbones" })
 return generator.generate(p, "dark", generator.get_global_config "zenflesh")