Simplify config

lua/plugins/cmp.lua

@@ -1,30 +1,33 @@
 return {
     "hrsh7th/nvim-cmp",
     event = "InsertEnter",
-    dependencies = "L3MON4D3/LuaSnip",
+    dependencies = {
+        "hrsh7th/cmp-nvim-lsp",
+        "hrsh7th/cmp-buffer",
+        "L3MON4D3/LuaSnip",
+        "saadparwaiz1/cmp_luasnip"
+    },
     config = function()
-        local lsp_zero = require("lsp-zero")
-        lsp_zero.extend_cmp()
-
         local cmp = require("cmp")
-        local cmp_action = lsp_zero.cmp_action()
 
-        cmp.setup({
-            formatting = lsp_zero.cmp_format(),
-            window = {
-                completion = cmp.config.window.bordered(),
-                documentation = cmp.config.window.bordered()
+        cmp.setup {
+            snippet = {
+                expand = function(args)
+                    require("luasnip").lsp_expand(args.body)
+                end
+            },
+            sources = {
+                { name = "nvim_lsp" },
+                { name = "luasnip" }
             },
             mapping = cmp.mapping.preset.insert({
                 ["<C-Space>"] = cmp.mapping.complete(),
                 ["<C-u>"] = cmp.mapping.scroll_docs(-4),
                 ["<C-d>"] = cmp.mapping.scroll_docs(4),
-                ["<C-f>"] = cmp_action.luasnip_jump_forward(),
-                ["<C-b>"] = cmp_action.luasnip_jump_backward(),
                 ["<CR>"] = cmp.mapping.confirm({ select = true }),
                 ["<Tab>"] = cmp.mapping.select_next_item(),
                 ["<S-Tab>"] = cmp.mapping.select_prev_item()
             })
-        })
+        }
     end
 }