Add app class 'com.mitchellh.ghostty'

[kzh]

Description of the Changes:
This change adds ghostty to the list of supported terminals.

Ghostty: https://github.com/ghostty-org/ghostty

Reason for Changes:

Related Issue(s) or PR(s):

Testing Done:

[RedBearAK]

@kzh

Thanks for this. I had seen some videos about Ghostty popping up in my YT recs in the last couple of days, but haven't checked it out yet.

In X11 session, apps usually still don't choose to use the Wayland-style app class strings, even if they are new apps. If I'm reading the references to WM_CLASS in the Ghostty code correctly, that means it will be appropriate to add these, which I'm doing in a separate merge after merging your PR:

    "ghostty",
    "ghostty-debug",

Reference:

https://github.com/ghostty-org/ghostty/blob/478fe3917c2882a1c321f9d1eec808b71698974d/src/apprt/gtk/App.zig#L362

[RedBearAK]

@kzh

Added a keymap for Ghostty in the default Toshy config file, between these two keymaps:

keymap("Deepin Terminal overrides", {
    C("RC-w"):                  C("Alt-w"),                     # Close only current tab, instead of all other tabs
    C("RC-j"):                  None,                           # Block Cmd+J from remapping to vertical split (Ctrl+Shift+J) 
    C("RC-minus"):              C("C-minus"),                   # Decrease font size/zoom out 
    C("RC-equal"):              C("C-equal"),                   # Increase font size/zoom in
}, when = matchProps(clas="^deepin-terminal$"))

keymap("Ghostty terminal overrides", {
    C("RC-Equal"):              C("C-Equal"),                   # Increase font size [override general terminals remap]
}, when = matchProps(clas="^ghostty$|^ghostty-debug$|^com.mitchellh.ghostty$"))

keymap("Hyper terminal tab switching", {
    C("RC-Equal"):              C("C-Equal"),                   # Increase font size [override general terminals remap]
    C("Shift-LC-Tab"):          C("Shift-C-Tab"),               # Tab nav: Go to prior tab (left) [override general remap]
    C("LC-Tab"):                C("C-Tab"),                     # Tab nav: Go to next tab (right) [override general remap]
}, when = matchProps(clas="^hyper$"))