added keybind for ts context.

modules/home-manager/nvim/treesitter/default.nix

@@ -28,6 +28,15 @@
           })
         '';
         keymaps = [
+          {
+            action = ":TSContextToggle<CR>";
+            key = "<leader>x";
+            mode = "n";
+            options = {
+              silent = true;
+              desc = "tree context toggle";
+            };
+          }
           {
             action = ":TSJToggle<CR>";
             key = "<leader>j";