fix(keymap): apply user keymaps when default_global_keymaps is false

This should fix #160

Author: sudo-tee

lua/opencode/config.lua

@@ -251,7 +251,7 @@ function M.setup(opts)
   M.values = vim.tbl_deep_extend('force', M.values, opts --[[@as OpencodeConfig]])
 
   if opts.default_global_keymaps == false then
-    M.values.keymap.editor = {}
+    M.values.keymap.editor = opts.keymap and opts.keymap.editor or {}
   end
 
   update_keymap_prefix(M.values.keymap_prefix, M.defaults.keymap_prefix)