Migrate Neovim config to 0.12

lua/core/options.lua

@@ -86,7 +86,11 @@ vim.opt.hlsearch = true -- Highlight all matches after searching
 vim.opt.shortmess:remove('S') -- Show search count, e.g. [3/17]
 
 vim.opt.inccommand = 'split' -- Preview substitutions live in a split
-vim.opt.completeopt = { 'fuzzy', 'menuone', 'popup', 'noselect' }
+vim.opt.autocomplete = true
+vim.opt.autocompletedelay = 60
+vim.opt.autocompletetimeout = 120
+vim.opt.complete = { 'o' }
+vim.opt.completeopt = { 'menuone', 'popup', 'noselect', 'noinsert' }
 
 -- Splits
 vim.opt.splitright = true