Migrate nvim config to Lua

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

@@ -0,0 +1,35 @@
+local o = vim.opt
+local wo = vim.wo
+local bo = vim.bo
+
+-- Global dirs
+local cachedir = os.getenv("XDG_CACHE_HOME")
+o.backupdir = cachedir .. "/nvim/backup/"
+o.directory = cachedir .. "/nvim/swap/"
+o.undodir   = cachedir .. "/nvim/undo/"
+
+-- Global
+o.breakindent = true
+o.clipboard = "unnamedplus"
+o.compatible = false
+o.encoding = "utf-8"
+o.expandtab = true
+o.hidden = true
+o.hlsearch = false
+o.ignorecase = true
+o.laststatus = 2
+o.listchars = { eol = '↲', tab = '▸ ', trail = '·' }
+o.relativenumber = true
+o.shiftwidth = 2
+o.showmode = false
+o.smartcase = true
+o.smarttab = true
+o.softtabstop = 2
+o.synmaxcol = 150
+o.tabstop = 4
+o.undofile = true
+o.wildmenu = true
+
+-- Window
+
+-- Buffer