optimize: don't create lazygit term until toggle

lua/plugins/visuals.lua

@@ -89,13 +89,16 @@ return {
         'akinsho/toggleterm.nvim',
         config = function()
             local Terminal  = require('toggleterm.terminal').Terminal
-            local lazygit = Terminal:new({
+            local lazygit = nil
-                cmd = "lazygit",
-                hidden = true,
-                direction = 'float',
-            })
 
             function _lazygit_toggle()
+              if lazygit == nil then
+                lazygit = Terminal:new({
+                    cmd = "lazygit",
+                    hidden = true,
+                    direction = 'float',
+                })
+              end
               lazygit:toggle()
             end