feat(nvim): Add astronvim configuration

Signed-off-by: Noah Knegt <git@noahknegt.com>

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

@@ -0,0 +1,41 @@
+-- Customize Mason plugins
+
+---@type LazySpec
+return {
+  -- use mason-lspconfig to configure LSP installations
+  {
+    "williamboman/mason-lspconfig.nvim",
+    -- overrides `require("mason-lspconfig").setup(...)`
+    opts = function(_, opts)
+      -- add more things to the ensure_installed table protecting against community packs modifying it
+      opts.ensure_installed = require("astrocore").list_insert_unique(opts.ensure_installed, {
+        "lua_ls",
+        -- add more arguments for adding more language servers
+      })
+    end,
+  },
+  -- 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 = function(_, opts)
+      -- add more things to the ensure_installed table protecting against community packs modifying it
+      opts.ensure_installed = require("astrocore").list_insert_unique(opts.ensure_installed, {
+        "prettier",
+        "stylua",
+        -- add more arguments for adding more null-ls sources
+      })
+    end,
+  },
+  {
+    "jay-babu/mason-nvim-dap.nvim",
+    -- overrides `require("mason-nvim-dap").setup(...)`
+    opts = function(_, opts)
+      -- add more things to the ensure_installed table protecting against community packs modifying it
+      opts.ensure_installed = require("astrocore").list_insert_unique(opts.ensure_installed, {
+        "python",
+        -- add more arguments for adding more debuggers
+      })
+    end,
+  },
+}