* add: program.ReleaseTerminal and RestoreTerminal to re-use input & terminal
* chore(examples): add altscreen toggling to exec demo
* chore: put low-level altscreen stuff alongside other screen funcs
* docs: edit GoDocs for ReleaseTerminal and RestoreTerminal
* feat(renderer): add internal Msg renderMsg to immediately repaint
* fix: repaint instantly on RestoreTerminal
* fix: restore the altscreen state when restoring the terminal
* feat: implement Cmd-based API for blocking *exec.Cmds
* feat: allow Exec to return custom messages
* feat: allow Exec to be run without a callback
* fix: separate parameters for exec.Command examples
* fix: error message would get printed over by prompt in exec example
* fix: ignore signals while child process is running
* feat: allow to execute other things besides exec.Commands (#280)
* feat: allow to execute other things besides exec.Commands.
* fix: lint issues
* fix: renames, examples
* fix: callback type should be exported
* docs(exce): tiny ExecCommand doc comment correction
* chore(exec): break out Cmd for clarity's sake in example
* fix(exec): give the terminal a moment to catch up if exiting altscreen
* docs(exec): tidy up doc comments
* chore(exec): disambiguate methods for restoring the terminal state vs input
Co-authored-by: Christian Rocha <christian@rocha.is>
Co-authored-by: Carlos A Becker <caarlos0@gmail.com>
Christian Muehlhaeuser
Christian Rocha