fix(#33): add command mode color for lualine (#35)

lua/lualine/themes/tokyodark.lua

@@ -34,6 +34,7 @@ local tokyo_dark = {
     visual = { a = { fg = colors.bg, bg = colors.purple, gui = "bold" } },
     replace = { a = { fg = colors.bg, bg = colors.red, gui = "bold" } },
     insert = { a = { fg = colors.bg, bg = colors.blue, gui = "bold" } },
+    command = { a = { fg = colors.bg, bg = colors.yellow, gui = "bold" } },
 }
 
 local mt = {}