Ctrl+Left/Right for WordForward/Backward

[maaslalani]

This PR enables ctrl+left for WordBackward and ctrl+right
for WordForward.

NB: theoretically this should work but I didn't see this work in Kitty, iTerm,
or terminal.app.

[maaslalani]

Fixes #150

[meowgorithm]

If this doesn’t work in more or less all terminals (including urxvt) we shouldn’t support the binding.

[franalbani]

I'm totally new to Go. This is what I did (with ChatGPT help):

• downloaded https://github.com/charmbracelet/bubbletea/blob/master/examples/textinput/main.go
• go init bla
• go mod tidy
• go run main.go
• tiped 3 words... CTRL+arrows didn't work.
• edited go.mod and changed bubbles version to textinput-ctrl-arrows
• go get -u
• go run main.go
• tiped 3 words, and it worked!

I tried with:

• allacritty ✔️
• kitty ✔️
• cool-retro-term ✔️
• Linux VT (CTRL+ALT+F2) ❎

Please correct the steps if there is a simpler way.

[lietu]

How about supporting the very commonplace binding for those environments where it is sufficiently trivial to do so, and add a new issue about supporting it on the more rare ones that it's still not working in?

[meowgorithm]

I'm able to verify these bindings; it's fine to merge this.

On macOS they're unavailable by default because they're bound to Mission Control (see screenshot); when unbound the keystrokes are captured by the terminal. The bindings also exist in Bubble Tea, which means they've been vetted.