docs(settings): suppress missing-fields on the partial palette override

palette_overwrite is a PARTIAL override merged via tbl_extend(force), but
the palette class declares every field required, so the corrected @type
made lua_ls flag the empty default with missing-fields. Keep the class
annotation (it drives the advertised key completion) and disable that one
diagnostic on the assignment; verified with lua-language-server --check
that the suppression line must sit directly above the assignment.

Author: charliie-dev

lua/core/settings.lua

@@ -58,6 +58,7 @@ settings["disabled_plugins"] = {}
 -- Parameters will auto-complete as you type.
 -- Example: { sky = "#04A5E5" }
 ---@type palette
+---@diagnostic disable-next-line: missing-fields
 settings["palette_overwrite"] = {}
 
 -- Set the colorscheme here.