feat: add rustaceanvim and haskell-tools

flake.nix

@@ -168,6 +168,9 @@
               undotree
               conform-nvim
               neocord
+              rustaceanvim
+              crates-nvim
+              haskell-tools-nvim
             ];
           };
 

lua/plugins/lz-spec.lua

@@ -229,4 +229,13 @@ return {
       })
     end,
   },
+  {
+    "crates.nvim",
+    filetypes = "*.toml",
+    after = function()
+      require("crates").setup()
+    end,
+  },
+  { "rustaceanvim" },
+  { "haskell-tools.nvim" },
 }