Refactor: switch from packer to lazy.vim

- Packer is no longer maintained (as of August, 2023)

.config/nvim/lua/cole/lazy.lua

@@ -0,0 +1,16 @@
+require("lazy").setup({ -- Fuzzy finder
+{
+    'nvim-telescope/telescope.nvim',
+    tag = '0.1.5',
+    dependencies = {'nvim-lua/plenary.nvim'}
+}, -- syntax highlighting
+{
+    'nvim-treesitter/nvim-treesitter',
+    build = ':TSUpdate'
+}, -- LSP support
+{
+    'VonHeikemen/lsp-zero.nvim',
+    branch = 'v3.x',
+    dependencies = {{'williamboman/mason.nvim'}, {'williamboman/mason-lspconfig.nvim'}, {'neovim/nvim-lspconfig'},
+                    {'hrsh7th/nvim-cmp'}, {'hrsh7th/cmp-nvim-lsp'}, {'L3MON4D3/LuaSnip'}}
+}})