Add avante.nvim

lua/plugins/copilot-chat.lua

@@ -0,0 +1,17 @@
+return {
+  "CopilotC-Nvim/CopilotChat.nvim",
+  branch = "canary",
+  keys = {
+    -- disable this keymap since it conflicts with avante.nvim
+    { "<leader>aa", false },
+    -- replace the keymap with a new one
+    {
+      "<leader>aA",
+      function()
+        return require("CopilotChat").toggle()
+      end,
+      desc = "Toggle (CopilotChat)",
+      mode = { "n", "v" },
+    },
+  },
+}