added fish theme

lua/tokyonight/extra/init.lua

@@ -0,0 +1,22 @@
+package.path = "./lua/?/init.lua;./lua/?.lua"
+
+local config = require("tokyonight.config")
+local kitty = require("tokyonight.extra.kitty")
+local fish = require("tokyonight.extra.fish")
+
+local function write(str, fileName)
+  print("[write] extra/" .. fileName)
+  local file = io.open("extras/" .. fileName, "w")
+  file:write(str)
+  file:close()
+end
+
+config.style = "storm"
+
+write(kitty.kitty(config), "kitty_tokyonight_storm.conf")
+write(fish.fish(config), "fish_tokyonight_storm.fish")
+
+config.style = "night"
+
+write(kitty.kitty(config), "kitty_tokyonight_night.conf")
+write(fish.fish(config), "fish_tokyonight_night.fish")