nixvimConfigs/fiesta: update LSP and Treesitter setup

configs/nixvim/fiesta/modules/setups/lsp.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, helpers, ... }:
 
 let
   nixvimConfig = config.nixvimConfigs.fiesta;
@@ -15,6 +15,19 @@ in
     };
 
   config = lib.mkIf cfg.enable {
+    keymaps = [
+      {
+        mode = [ "n" ];
+        key = "<leader>Li";
+        options.desc = "Toggle inlay hints";
+        action = helpers.mkRaw ''
+          function()
+            vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled())
+          end
+        '';
+      }
+    ];
+
     plugins.lsp = {
       enable = true;
       inlayHints = true;

configs/nixvim/fiesta/modules/setups/treesitter.nix

@@ -18,29 +18,6 @@ in
       nixGrammars = true;
       nixvimInjections = true;
 
-      # We'll just use the common languages out of the bat.
-      grammarPackages = with config.plugins.treesitter.package.builtGrammars; [
-        bash
-        c
-        cpp
-        css
-        dockerfile
-        go
-        graphql
-        html
-        http
-        javascript
-        json
-        json5
-        lua
-        nix
-        rust
-        toml
-        tsx
-        typescript
-        yaml
-      ];
-
       # Enable all of its useful features.
       folding = true;
       settings = {