feat(bash): add zsh support (#1448)

Author: ALameLlama

lua/astrocommunity/pack/bash/README.md

@@ -7,3 +7,5 @@ This plugin pack does the following:
 - Adds `shfmt` formatter
 - Adds `shellcheck` linter
 - Adds `bash` debugger
+
+> :warning: Also attaches to zsh files with experimental support.

lua/astrocommunity/pack/bash/init.lua

@@ -1,4 +1,14 @@
 return {
+  {
+    "AstroNvim/astrolsp",
+    opts = {
+      config = {
+        bashls = {
+          filetypes = { "sh", "bash", "zsh" },
+        },
+      },
+    },
+  },
   {
     "nvim-treesitter/nvim-treesitter",
     optional = true,
@@ -46,6 +56,7 @@ return {
     opts = {
       formatters_by_ft = {
         sh = { "shfmt", "shellcheck" },
+        zsh = { "shfmt", "shellcheck" },
       },
     },
   },
@@ -55,6 +66,7 @@ return {
     opts = {
       linters_by_ft = {
         sh = { "shellcheck" },
+        zsh = { "shellcheck" },
       },
     },
   },