fix(indent-blankline): set config.indent.tab_char (#1552)

See lukas-reineke/indent-blankline.nvim#665.

lua/lazyvim/plugins/ui.lua

@@ -168,7 +168,10 @@ return {
     "lukas-reineke/indent-blankline.nvim",
     event = { "BufReadPost", "BufNewFile" },
     opts = {
-      indent = { char = "│" },
+      indent = {
+        char = "│",
+        tab_char = "│",
+      },
       scope = { enabled = false },
       exclude = {
         filetypes = {