fix ctrl-i/ctrl-h/ctrl-b/ctrl-f

[phanen]

• fix: ctrl-i don't work after fec7e9c
• fix: missing readline keybind in commit editor

PR Description

After updating from source I notice many keybind broken.
Because a recent bump of gocui/tcell.

gocui pr: jesseduffield/gocui#92

Please check if the PR fulfills these requirements

• Cheatsheets are up-to-date (run go generate ./...)
• Code has been formatted (see here)
• Tests have been added/updated (see here for the integration test guide)
• Text is internationalised (see here)
• If a new UserConfig entry was added, make sure it can be hot-reloaded (see here)
• Docs have been updated if necessary
• You've read through your own file changes for silly mistakes etc

[stefanhaller]

I don't want to add any of these to the list just yet. The upgrade of tcell allows us to have many more available keybindings (e.g. <s-c-a-pgup>), but we need some changes to our keybinding infrastructure to handle these. And they will only be available if the terminal supports the new key event protocol, so we need to find a way to warn the user if theirs doesn't. I'm working on this (slowly, might take a few more weeks), and I want to add these missing keybindings then.

[phanen]

Thanks. Now for me the only missing part is to make can work as tab in lazygit (togglePanel). Which I think you will resolve later.