install powershell_es for lsp and parser in treesitter

lua/kickstart/plugins/lspconfig.lua

@@ -175,6 +175,7 @@ return {
       --  - settings (table): Override the default settings passed when initializing the server.
       --        For example, to see the options for `lua_ls`, you could go to: https://luals.github.io/wiki/settings/
       local servers = {
+        powershell_es = {},
         rust_analyzer = {},
         tailwindcss = {},
         omnisharp = {},

lua/kickstart/plugins/treesitter.lua

@@ -30,6 +30,7 @@ return {
         'rust',
         'c_sharp',
         'go',
+        'powershell',
         -- git
         'gitcommit',
         'gitignore',