fix(options): set default laststatus=3 and set it to 0 before loading dashboard to prevent flickering

lua/lazyvim/config/options.lua

@@ -16,7 +16,7 @@ opt.grepformat = "%f:%l:%c:%m"
 opt.grepprg = "rg --vimgrep"
 opt.ignorecase = true -- Ignore case
 opt.inccommand = "nosplit" -- preview incremental substitute
-opt.laststatus = 0
+opt.laststatus = 3 -- global statusline
 opt.list = true -- Show some invisible characters (tabs...
 opt.mouse = "a" -- Enable mouse mode
 opt.number = true -- Print line number

lua/lazyvim/plugins/ui.lua

@@ -316,6 +316,7 @@ return {
       return dashboard
     end,
     config = function(_, dashboard)
+      vim.o.laststatus = 0
       -- close Lazy and re-open when the dashboard is ready
       if vim.o.filetype == "lazy" then
         vim.cmd.close()