Nvim: update most of the plugins

.config/nvim/lua/plugins/nvim-cmp.lua

@@ -7,6 +7,7 @@ return {
     'hrsh7th/cmp-buffer',
     'hrsh7th/cmp-cmdline',
     'hrsh7th/cmp-nvim-lsp',
+    'hrsh7th/cmp-nvim-lsp-signature-help',
     'hrsh7th/cmp-path',
     'hrsh7th/cmp-calc',
   },
@@ -15,15 +16,18 @@ return {
     local cmp = require'cmp'
 
     cmp.setup({
-        -- snippet = {
-        --     expand = function(args)
-        --         require('snippy').expand_snippet(args.body)
-        --     end,
-        -- },
+        snippet = {
+            expand = function(args)
+                require('snippy').expand_snippet(args.body)
+            end,
+        },
         window = {
             completion = cmp.config.window.bordered(),
             documentation = cmp.config.window.bordered(),
         },
+        experimental = {
+          ghost_text = true,
+        },
         mapping = cmp.mapping.preset.insert({
             ['<C-b>'] = cmp.mapping.scroll_docs(-4),
             ['<C-f>'] = cmp.mapping.scroll_docs(4),
@@ -33,6 +37,7 @@ return {
         }),
         sources = cmp.config.sources({
             { name = 'nvim_lsp' },
+            { name = 'nvim_lsp_signature_help' },
             { name = 'path' },
             { name = 'snippy' },
             { name = 'calc' },