Feature Request: Support Ctrl+Backspace and Ctrl+Delete for Word Deletion in TUI #1167

In the TUI (Terminal User Interface) of opencode, pressing Ctrl+Backspace or Ctrl+Delete does not delete the previous or next word, respectively. This is a feature request to add support for these common keyboard shortcuts.

This behavior is common in many editors and terminal applications, and would improve text editing efficiency in the TUI.

OS and terminal emulator do not matter for this request.

Thank you!