add wezterm config

wezterm/wezterm.lua

@@ -0,0 +1,44 @@
+-- Function to search PATH for a program
+function program_exists(program)
+	local path_separator = package.config:sub(1,1) == "\\" and ";" or ":"
+	for path in string.gmatch(os.getenv("PATH"), "[^" .. path_separator .. "]+") do
+		local file_path = path .. "/" .. program
+		local file = io.open(file_path, "r")
+		if file then
+			file:close()
+			return true
+		end
+	end
+	return false
+end
+
+
+local wezterm = require 'wezterm'
+local config = wezterm.config_builder()
+
+config.color_scheme = 'Windows NT (base16)'
+
+config.font = wezterm.font 'Iosevka'
+config.font_size = 12.0
+
+config.use_fancy_tab_bar = false
+config.hide_tab_bar_if_only_one_tab = true
+
+config.window_padding = { left = 0, right = 0, top = 0, bottom = 0 }
+config.initial_cols = 120
+config.initial_rows = 30
+
+-- Select default shell if running on Windows
+if (package.config:sub(1,1) == '\\') then
+	if program_exists('nu.exe') then
+		config.default_prog = { 'nu.exe' }
+	elseif program_exists('pwsh.exe') then
+		config.default_prog = { 'pwsh.exe' }
+	elseif program_exists('powershell.exe') then
+		config.default_prog = { 'powershell.exe' }
+	else
+		config.default_prog = { 'cmd.exe' }
+	end
+end
+
+return config