feat(pack): add bash language pack

lua/astrocommunity/pack/bash/README.md

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+# Bash Language Pack
+
+This plugin pack does the following:
+
+- Adds `bash` Treesitter parser
+- Adds `bashls` language server
+- Adds `shfmt` formatter
+- Adds `shellcheck` linter
+- Adds `bash` debugger

lua/astrocommunity/pack/bash/bash.lua

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+return {
+  {
+    "nvim-treesitter/nvim-treesitter",
+    opts = function(_, opts)
+      -- Ensure that opts.ensure_installed exists and is a table or string "all".
+      if not opts.ensure_installed then
+        opts.ensure_installed = {}
+      elseif opts.ensure_installed == "all" then
+        return
+      end
+      -- Add the "julia" and "toml" language to opts.ensure_installed.
+      table.insert(opts.ensure_installed, "bash")
+    end,
+  },
+  {
+    "williamboman/mason-lspconfig.nvim",
+    opts = function(_, opts)
+      -- Ensure that opts.ensure_installed exists and is a table
+      if not opts.ensure_installed then opts.ensure_installed = {} end
+      -- Add julia lsp and toml lsp to ensure_installed
+      table.insert(opts.ensure_installed, "bashls")
+    end,
+  },
+  {
+    "jay-babu/mason-null-ls.nvim",
+    opts = function(_, opts)
+      -- Ensure that opts.ensure_installed exists and is a table
+      if not opts.ensure_installed then opts.ensure_installed = {} end
+      -- Add julia lsp and toml lsp to ensure_installed
+      vim.list_extend(opts.ensure_installed, { "shellcheck", "shfmt" })
+    end,
+  },
+  {
+    "jay-babu/mason-nvim-dap.nvim",
+    opts = function(_, opts)
+      -- Ensure that opts.ensure_installed exists and is a table
+      if not opts.ensure_installed then opts.ensure_installed = {} end
+      -- Add julia lsp and toml lsp to ensure_installed
+      table.insert(opts.ensure_installed, "bash")
+    end,
+  },
+}