fixed overseer keybinding

lua/setup/my_overseer.lua

@@ -3,7 +3,16 @@ overseer.setup({
   templates = { "builtin", "user.cmake.cmake" },
 })
 
-vim.keymap.set({ 'n', 'x' }, '<F4>', function()
+require('legendary').keymaps(
+  {
+    {
+      '<f4>',
+      function()
         overseer.open()
         overseer.run_template()
-end, opts)
+      end,
+      mode = { 'n', 'x' },
+      description = 'Start task (overseer)',
+    },
+  }
+)