Updated Neovim config to lua, cleaned up unneccecary plugins

nvim/lua/config/cmp.lua

@@ -0,0 +1,74 @@
+-- Completion setup for Neovim using nvim-cmp and LuaSnip
+
+-- Safely import modules
+local cmp_status, cmp = pcall(require, "cmp")
+if not cmp_status then
+  return
+end
+
+local snip_status, luasnip = pcall(require, "luasnip")
+if not snip_status then
+  return
+end
+
+-- Load friendly-snippets (optional, prebuilt snippets)
+require("luasnip.loaders.from_vscode").lazy_load()
+
+-- Setup nvim-cmp
+cmp.setup({
+  snippet = {
+    expand = function(args)
+      luasnip.lsp_expand(args.body)
+    end,
+  },
+
+  mapping = cmp.mapping.preset.insert({
+    ["<C-Space>"] = cmp.mapping.complete(),        -- Trigger completion menu
+    ["<CR>"] = cmp.mapping.confirm({ select = true }), -- Confirm selection
+    ["<Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif luasnip.expand_or_jumpable() then
+        luasnip.expand_or_jump()
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+
+    ["<S-Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif luasnip.jumpable(-1) then
+        luasnip.jump(-1)
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+  }),
+
+  sources = cmp.config.sources({
+    { name = "nvim_lsp" },  -- LSP completion
+    { name = "luasnip" },   -- Snippets
+  }, {
+    { name = "buffer" },    -- Words in current buffer
+    { name = "path" },      -- File system paths
+  }),
+
+  window = {
+    completion = cmp.config.window.bordered(),
+    documentation = cmp.config.window.bordered(),
+  },
+
+  formatting = {
+    format = function(entry, vim_item)
+      vim_item.menu = ({
+        nvim_lsp = "[LSP]",
+        luasnip = "[Snip]",
+        buffer = "[Buf]",
+        path = "[Path]",
+      })[entry.source.name]
+      return vim_item
+    end,
+  },
+})
+