Refactor: use vim 0.12 built-in package manager.

- removes lazyvim
- updates cmp config

.config/nvim/lua/cole/cmp.lua

@@ -0,0 +1,44 @@
+local cmp = require("cmp")
+local luasnip = require("luasnip")
+
+cmp.setup({
+    snippet = {
+        expand = function(args)
+            luasnip.lsp_expand(args.body)
+        end
+    },
+
+    mapping = cmp.mapping.preset.insert({
+        ["<C-b>"] = cmp.mapping.scroll_docs(-4),
+        ["<C-f>"] = cmp.mapping.scroll_docs(4),
+        ["<C-p>"] = cmp.mapping.select_prev_item(),
+        ["<C-n>"] = cmp.mapping.select_next_item(),
+        ["<C-Space>"] = cmp.mapping.complete(),
+        ["<C-e>"] = cmp.mapping.abort(),
+
+        ["<CR>"] = cmp.mapping.confirm({
+            select = false
+        })
+    }),
+
+    preselect = cmp.PreselectMode.None,
+
+    completion = {
+        completeopt = "menu,menuone,noinsert,noselect"
+    },
+
+    window = {
+        completion = cmp.config.window.bordered(),
+        documentation = cmp.config.window.bordered()
+    },
+
+    sources = cmp.config.sources({{
+        name = "nvim_lsp"
+    }, {
+        name = "luasnip"
+    }, {
+        name = "path"
+    }}, {{
+        name = "buffer"
+    }})
+})