Add spelling module

lua/spelling.lua

@@ -0,0 +1,21 @@
+local keyunmap = function(mode, binding)
+  if vim.fn.maparg(binding, mode) ~= "" then
+    vim.keymap.del(mode, binding)
+  end
+end
+
+local M = {}
+
+M.spell_keymap = function()
+    if vim.o.spell == true then
+      vim.keymap.set("n", "<Leader>i", "mzl[s1z=`z", { noremap = true, silent = true, desc = "f[I]x typo under cursor" })
+      vim.keymap.set("n", "à", "]s", { noremap = true, silent = true, desc = "Go to the next typo" })
+    else
+      keyunmap("n", "<Leader>i")
+      keyunmap("n", "à")
+    end
+end
+
+M.spell_keymap()
+
+return M