feat(plugins): add CopilotChat and treesitter-context plugins

lua/custom/plugins/init.lua

@@ -56,4 +56,20 @@ return {
     },
     version = '^1.0.0', -- optional: only update when a new 1.x version is released
   },
+  {
+    'CopilotC-Nvim/CopilotChat.nvim',
+    dependencies = {
+      { 'github/copilot.vim' }, -- or zbirenbaum/copilot.lua
+      { 'nvim-lua/plenary.nvim', branch = 'master' }, -- for curl, log and async functions
+    },
+    build = 'make tiktoken', -- Only on MacOS or Linux
+    opts = {
+      -- See Configuration section for options
+    },
+    -- See Commands section for default commands if you want to lazy load on them
+  },
+  {
+    'nvim-treesitter/nvim-treesitter-context',
+    opts = {},
+  },
 }