feat(pack): add wgsl pack

lua/astrocommunity/pack/wgsl/README.md

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+# wgsl Language Pack
+
+This plugin pack does the following:
+
+- Adds `wgsl` Treesitter parser: <https://github.com/szebniok/tree-sitter-wgsl>
+- Adds `wgsl` language server

lua/astrocommunity/pack/wgsl/init.lua

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+local utils = require "astronvim.utils"
+return {
+  {
+    "szebniok/tree-sitter-wgsl",
+    dependencies = "nvim-treesitter/nvim-treesitter",
+    lazy = false,
+    build = "cp -r queries ../nvim-treesitter/queries/wgsl",
+    config = function()
+      vim.filetype.add { extension = { wgsl = "wgsl" } }
+      require("nvim-treesitter.parsers").get_parser_configs().wgsl = {
+        install_info = {
+          url = vim.fn.stdpath "data" .. "/lazy/tree-sitter-wgsl",
+          files = { "src/parser.c", "src/scanner.c" },
+        },
+      }
+    end,
+    opts = function(_, opts) opts.ensure_installed = utils.list_insert_unique(opts.ensure_installed, "wgsl") end,
+  },
+  {
+    "williamboman/mason-lspconfig.nvim",
+    opts = function(_, opts) opts.ensure_installed = utils.list_insert_unique(opts.ensure_installed, "wgsl_analyzer") end,
+  },
+}