nvim: Use mason and let lazy init lsp settings

These are not unrelated to each other, mason and lsp need to load in
a specific order, so my setup was counter to that.

this also adds dap/dapui (I guess)

.config/nvim/init.vim

@@ -41,7 +41,6 @@ EOF
 
 lua require('ztf.colorscheme').apply()
 
-lua require("ztf.lsp")
 lua require("ztf.dap")
 lua require('ztf.treesitter')
 

.config/nvim/lua/plugins.lua

@@ -31,21 +31,35 @@ local plugins = {
   'tpope/vim-characterize',
   'tommcdo/vim-lion',
 
-  'neovim/nvim-lspconfig',
-  'mfussenegger/nvim-dap',
   {
-    "rcarriga/nvim-dap-ui",
-    lazy = true,
-    config = function() require("ztf.configure.dapui") end,
-    dependencies = { "mfussenegger/nvim-dap" },
+    "williamboman/mason.nvim",
+    opts = {},
   },
   {
-    "williamboman/mason.nvim",
+    "williamboman/mason-lspconfig.nvim",
     opts = {
       ensure_installed = {
         "tinymist",
+        "rust_analyzer",
+        "rust_analyzer",
+        "lua_ls",
       },
     },
+    dependencies = { "williamboman/mason.nvim" },
+  },
+  {
+    'neovim/nvim-lspconfig',
+    dependencies = { "williamboman/mason-lspconfig.nvim" },
+    config = function()
+      require("ztf.lsp")
+    end,
+  },
+  'mfussenegger/nvim-dap',
+  {
+    "rcarriga/nvim-dap-ui",
+    lazy = true,
+    config = function() require("ztf.configure.dapui") end,
+    dependencies = { "mfussenegger/nvim-dap" },
   },
   -- rust
   {