feat(editor): configure undotree plugin for improved usability

lua/plugins/editor.lua

@@ -50,11 +50,19 @@ return {
         cmd = { 'SudaRead', 'SudaWrite' },
     },
 
-    -- Undo tree
+    -- Undo History Visualizer
     {
         'mbbill/undotree',
-        cmd = 'UndotreeToggle',
+        cmd = { 'UndotreeToggle' },
         keys = { { '<leader>u', '<cmd>UndotreeToggle<cr>', desc = 'Undo Tree' } },
+        config = function()
+            vim.g.undotree_WindowLayout = 2
+            vim.g.undotree_SetFocusWhenToggle = 1
+            vim.g.undotree_SplitWidth = 35
+            vim.g.undotree_DiffpanelHeight = 15
+            vim.g.undotree_DiffCommand = 'diff --unified=0'
+            -- vim.g.undotree_DiffCommand = "git diff --no-index --unified=0 --patience"
+        end,
     },
 
     -- visual multi