minor updates

.config/nvim/lua/config/autocmd.lua

@@ -1,5 +1,14 @@
 -- Set proper tabstop for go
 vim.api.nvim_create_autocmd('FileType', {
     pattern = "go",
-    command = "setlocal tabstop=4",
+    command = "setlocal tabstop=4 noexpandtab",
+})
+
+-- Remove trailing whitespaces on save
+vim.api.nvim_create_autocmd('BufWritePre', {
+    callback = function ()
+        local view = vim.fn.winsaveview()
+        vim.cmd('%s/\\s\\+$//e')
+        vim.fn.winrestview(view)
+    end
 })