Add "Look Up" and "Search with [Engine]" to right-click context menu

[0xBigBoss]

Summary

When text is selected in Ghostty, it would be useful to have "Look Up" and "Search with [default search engine]" options in the right-click context menu, matching the behavior of Terminal.app and other macOS apps.

Use Case

Force Click currently shows dictionary definitions, but this is not accessible for users with mice (no trackpad) or those who prefer right-click workflows. Adding these menu items would provide:

1. Look Up "[selection]" - Shows the macOS dictionary/definition popup (same as Force Click)
2. Search [Engine] for "[selection]" - Opens the default browser with the user's configured default search engine

Reference: Terminal.app behavior

Prototype

I've implemented this locally to validate the approach:

Implementation Notes

• The search engine name/URL can be read from NSPreferredWebServices in global UserDefaults
• showDefinition(for:at:) on NSView provides the dictionary popup
• Menu items should only appear when non-whitespace text is selected

I'm happy to submit a PR if there's interest.

[trag1c]

"Look Up" only being available through force click does sound like an oversight. The Search option seems to be pretty widely available on macOS so this is reasonable too IMO 👍
_{note: I'm not part of the macOS team so this isn't a formal approval}

EDIT: Actually, it looks like the Search one can be enabled in macOS settings to show up under Services:

[0xBigBoss]

Yup, that is a workaround.

[rhodes-b]

This is a previously rejected feature request, I can't find a discussion on github but I do remember it being in the discord ill try to find that later (the search engine one)