added my own configuration for astronvim

nvim/lua/user/plugins/mason.lua

@@ -0,0 +1,43 @@
+return {
+  -- use mason-lspconfig to configure LSP installations
+  {
+    "williamboman/mason-lspconfig.nvim",
+    -- overrides `require("mason-lspconfig").setup(...)`
+    opts = {
+      ensure_installed = {
+        "lua_ls",
+        "tsserver",
+        "vimls",
+        "yamlls",
+        "bashls",
+        "angularls",
+        "elmls",
+        "ansiblels",
+        "docker_compose_language_service",
+        "dockerls",
+        "emmet_ls",
+        "jsonls",
+        "marksman",
+        "phan",
+        "pyright",
+        "svelte",
+        "volar",
+      },
+    },
+  },
+  -- use mason-null-ls to configure Formatters/Linter installation for null-ls sources
+  {
+    "jay-babu/mason-null-ls.nvim",
+    -- overrides `require("mason-null-ls").setup(...)`
+    opts = {
+      -- ensure_installed = { "prettier", "stylua" },
+    },
+  },
+  {
+    "jay-babu/mason-nvim-dap.nvim",
+    -- overrides `require("mason-nvim-dap").setup(...)`
+    opts = {
+      -- ensure_installed = { "python" },
+    },
+  },
+}