fix(autocmds): improve WinScrolled autocmd to refresh indent blankline

Author: mehalter

lua/astronvim/autocmds.lua

@@ -224,7 +224,9 @@ if is_available "indent-blankline.nvim" then
     group = augroup("indent_blankline_refresh_scroll", { clear = true }),
     callback = function()
       -- TODO: remove neovim version check when dropping support for Neovim 0.8
-      if vim.fn.has "nvim-0.9" ~= 1 or vim.v.event.all.leftcol ~= 0 then pcall(vim.cmd.IndentBlanklineRefresh) end
+      if vim.fn.has "nvim-0.9" ~= 1 or (vim.v.event.all and vim.v.event.all.leftcol ~= 0) then
+        pcall(vim.cmd.IndentBlanklineRefresh)
+      end
     end,
   })
 end