chat-text-shadow: add module to show text shadows

mods/chat-text-shadow.lua

@@ -0,0 +1,19 @@
+local _G = ShaguTweaks.GetGlobalEnv()
+local T = ShaguTweaks.T
+local rgbhex = ShaguTweaks.rgbhex
+
+local module = ShaguTweaks:register({
+  title = T["Enable Text Shadow"],
+  description = T["Enable text shadow in all chat frames."],
+  expansions = { ["vanilla"] = true, ["tbc"] = false },
+  category = T["Chat"],
+  maintainer = "@shagu (GitHub)",
+  enabled = nil,
+})
+
+module.enable = function(self)
+  for i=1,NUM_CHAT_WINDOWS do
+    local font, size = _G["ChatFrame"..i]:GetFont()
+    _G["ChatFrame"..i]:SetFont(font, size, "OUTLINE")
+  end
+end