new action 'edit_config' that behaves like ghostty +edit-config and can be bound to a key combination

[gwallet]

Context

ghostty is currently customizable via a text config file.

The config file location depends on the operating system in use and embrace each "configuration file location" strategy ($XDG_CONFIG on Linux, ~/Library/Application Support/… on Mac OS, …)

As such, there are 2 ways of editing the configuration file without dealing with the location, either:

• by opening the file with a graphical editor using a key combination (ie: <super> + , on mac for example) bound to the action open_config
• or via command line with: ghostty +edit-config

The latter is using the ${EDITOR} to open the file within the terminal session.

Proposal

By adding a new action, like edit_config, someone could overload the default keybinding to open the config file from open_config to edit_config in order to edit the config from within the terminal session.

Terminal emulator user should mostly be familiar with command line text editing and this proposal aim to make ghostty configuration workflow totally integrated with the terminal session.

This proposal is different than the closed issues and merged PR about how to open the configuration file in a proper way depending on the OS. In the current scope of this proposal, the default behaviour consisting of opening the file with a text editing app (GUI) still remains.