plugins: alpha: Move alpha related cmd to alpha config

this special handling of statusline should only be done if alpha plugin is used

lua/core/init.lua

@@ -27,21 +27,6 @@ autocmd("VimEnter", {
   end,
 })
 
--- Disable statusline in dashboard
-autocmd("FileType", {
-  pattern = "alpha",
-  callback = function()
-    vim.opt.laststatus = 0
-  end,
-})
-
-autocmd("BufUnload", {
-  buffer = 0,
-  callback = function()
-    vim.opt.laststatus = 3
-  end,
-})
-
 -- store listed buffers in tab local var
 vim.t.bufs = vim.api.nvim_list_bufs()
 

lua/plugins/configs/alpha.lua

@@ -92,3 +92,19 @@ alpha.setup {
   },
   opts = {},
 }
+
+-- Disable statusline in dashboard
+vim.api.nvim_create_autocmd("FileType", {
+  pattern = "alpha",
+  callback = function()
+    -- store current statusline value and use that
+    local old_laststatus = vim.opt.laststatus
+    vim.api.nvim_create_autocmd("BufUnload", {
+      buffer = 0,
+      callback = function()
+        vim.opt.laststatus = old_laststatus
+      end,
+    })
+    vim.opt.laststatus = 0
+  end,
+})