Implement amux/work-item-0033

add work item 33

handle GPG signing for workflows using worktree

git worktree improved behaviour

git worktree and ssh creds support

workflow controls dialog

update gitignore

fix cargo build warning

add initial implementation of multi-step workflows, maybe fixed lsp message suppression

fix flake tests

make tests pass for releases

prep for release 0.3

update quit / close tab behaviour

re-arrange readme

fix tests?