update indent-blankline to exclude various special plugin buffers

lua/plugins/indent-blankline.lua

@@ -4,7 +4,20 @@ return {
     -- Enable `lukas-reineke/indent-blankline.nvim`
     -- See `:help ibl`
     main = 'ibl',
-    opts = {},
+    opts = function()
+      return {
+        exclude = {
+          filetypes = {
+            'help',
+            'dashboard',
+            'neo-tree',
+            'lazy',
+            'mason',
+            'toggleterm',
+          },
+        },
+      }
+    end,
   },
 }