Add sibling-swap plugin

.config/astronvim/lua/user/plugins/user.lua

@@ -21,5 +21,13 @@ return {
     "wakatime/vim-wakatime",
     enabled = wakatime_enabled,
     lazy = false
+  },
+
+  {
+    "Wansmer/sibling-swap.nvim",
+    lazy = false,
+    opts = {
+      use_default_keymaps = false,
+    }
   }
 }