added luasnip as cmp snippet engine

lua/plugins/cmp.lua

@@ -11,8 +11,8 @@ return {
             'hrsh7th/cmp-emoji',
             'kdheepak/cmp-latex-symbols',
             -- snippets
-            'hrsh7th/cmp-vsnip',
-            'hrsh7th/vim-vsnip',
+            'saadparwaiz1/cmp_luasnip',
+            'L3MON4D3/LuaSnip',
             'onsails/lspkind.nvim'
         },
         config = function(_, _)
@@ -32,12 +32,12 @@ return {
                 },
                 snippet = {
                     expand = function(args)
-                        vim.fn["vsnip#anonymous"](args.body)
+                        require('luasnip').lsp_expand(args.body)
                     end,
                 },
                 completion = {
                     preselect = 'none',
-                    completeopt = "menu,menuone,noinser,noselectt",
+                    completeopt = "menu,menuone,noinser",
                 },
                 sources = cmp.config.sources({
                     { name = 'nvim_lsp' },
@@ -69,9 +69,14 @@ return {
      }),
                 }),
                 formatting = {
-                    fields = { "abbr", "kind", "menu" },
+                    fields = { "kind", "abbr", "menu" },
                     format = function(entry, item)
-                         return require("lspkind").cmp_format()(entry, item)
+                         local kind = require("lspkind").cmp_format({ mode = "symbol_text", maxwidth = 50 })(entry, item)
+                        local strings = vim.split(kind.kind, "%s", { trimempty = true })
+                        kind.kind = (strings[1] or "") .. " "
+                        kind.menu = "    (" .. (strings[2] or "") .. ")"
+
+                        return kind
                     end
                 },
                 experimental = {