fix(context_completion): get key for new keymaps

Author: sudo-tee

lua/opencode/ui/completion/context.lua

@@ -206,7 +206,8 @@ local context_source = {
 
       local _, col = unpack(vim.api.nvim_win_get_cursor(0))
       local line = vim.api.nvim_get_current_line()
-      if col > 0 and line:sub(col, col) == config.keymap.window.context_items then
+      local key = config.get_key_for_function('input_window', 'context_items')
+      if col > 0 and line:sub(col, col) == key then
         line = line:sub(1, col - 1) .. line:sub(col + 1)
         input_win.set_current_line(line)
         vim.fn.feedkeys(vim.api.nvim_replace_termcodes('a', true, false, true), 'n')