updated neovim to use modern lazy

.config/nvim/lua/plugins/mason.lua

@@ -0,0 +1,50 @@
+return {
+  -- lang server installations
+  "williamboman/mason.nvim",
+  dependencies = {
+    {
+      "nvimtools/none-ls.nvim",
+      config = function()
+        require("null-ls").setup({
+          sources = {
+            -- assembler
+            require("null-ls").builtins.formatting.asmfmt,
+            -- lua
+            require("null-ls").builtins.formatting.stylua,
+            -- markdown
+            require("null-ls").builtins.formatting.mdformat,
+            -- python
+            require("null-ls").builtins.formatting.isort,
+            require("null-ls").builtins.formatting.yapf,
+            -- shell
+            require("null-ls").builtins.formatting.shfmt,
+            -- yaml
+            require("null-ls").builtins.formatting.yamlfmt,
+          },
+        })
+      end,
+    },
+    {
+      "jay-babu/mason-null-ls.nvim",
+      opts = {
+        automatic_installation = true,
+        ensure_installed = {
+          -- assembler
+          "asmfmt",
+          -- lua
+          "stylua",
+          -- markdown
+          "mdformat",
+          -- python
+          "isort",
+          "yapf",
+          -- shell
+          "shfmt",
+          -- yaml
+          "yamlfmt",
+        },
+      },
+    },
+  },
+  opts = { ui = { icons = Install_signs } },
+}