Enabled the writing of a backup file(<file>~) before writing.

lua/user/options.lua

@@ -20,7 +20,7 @@ vim.opt.termguicolors = true                    -- set term gui colors (most ter
 vim.opt.timeoutlen = 1000                       -- time to wait for a mapped sequence to complete (in milliseconds)
 vim.opt.undofile = true                         -- enable persistent undo
 vim.opt.updatetime = 300                        -- faster completion (4000ms default)
-vim.opt.writebackup = false                     -- if a file is being edited by another program (or was written to file while editing with another program), it is not allowed to be edited
+vim.opt.writebackup = true                      -- Write a backup file, before saving.
 vim.opt.expandtab = true                        -- convert tabs to spaces
 vim.opt.shiftwidth = 2                          -- the number of spaces inserted for each indentation
 vim.opt.tabstop = 2                             -- insert 2 spaces for a tab