Nvim: many small changes around whole project

.config/nvim/lua/core/config.lua

@@ -8,6 +8,11 @@ vim.opt.startofline = true
 vim.g.loaded_ruby_provider = 0
 vim.g.loaded_perl_provider = 0
 
+local undodir = vim.fn.expand('~/.cache/nvim/undo')
+vim.fn.mkdir(undodir, 'p')
+vim.opt.undodir = undodir
+vim.opt.undofile = true
+
 vim.opt.conceallevel = 1
 
 vim.opt.shell = '/bin/bash'

.config/nvim/lua/core/mappings.lua

@@ -11,7 +11,7 @@ map('t', '<ESC><ESC>', '<C-\\><C-n>', default_options)
 map('i', 'jj', '<ESC>', default_options)
 map('i', 'jk', '<ESC>', default_options)
 --map('i', ':w<CR>', '<Esc>:w<CR>', default_options)
-map('n', 'Q', '<cmd>q<CR>', default_options)
+map('n', 'Q', '<cmd>q', default_options)
 
 -- Reselect visual block after incrementing/decrementing
 map('v', '<c-a>', '<c-a>gv', default_options)