feat: add c++ support

fix: lol

feat: autosave, autodir

feat: add beta html support

fix: c project, full path

beta: c project

fix: change error msg

fix: don't resize in tab

feat: c, show overflow errors

feat: refactoring & execute file from runcode buffer

feat: add sh & ruby support

feat: error for unsupported filetype

feat: add method to infos

feat: use already opened runcode win to re-execute

feat: when closing runcode, place cursor correctly