nvim: Add support for bashls

dotfiles/nvim/lua/plugins/lsp/shell.lua

@@ -0,0 +1,5 @@
+return function()
+  require"lspconfig".bashls.setup {
+    capabilities = require"cmp_nvim_lsp".default_capabilities(),
+  }
+end

modules/packages/nvim.nix

@@ -36,6 +36,8 @@
         texlab
         haskell-language-server
         rustc
+        shellcheck
+        bash-language-server
       ];
     };