Changin the indent highlight format

lua/kickstart/plugins/indent_line.lua

@@ -1,9 +1,16 @@
+local highlight = {
+  'ColorColumn',
+  'Whitespace',
+}
+
 return {
   { -- Add indentation guides even on blank lines
     'lukas-reineke/indent-blankline.nvim',
     -- Enable `lukas-reineke/indent-blankline.nvim`
     -- See `:help ibl`
     main = 'ibl',
-    opts = {},
+    opts = {
+      indent = { highlight = highlight, char = '' },
+    },
   },
 }