Remove cloexec from stdio in terminal

Make file manager look nicer when scrolling

orblogin: Less magic numbers, smaller login button

Make Orbital Login Window Unclosable (calc, editor, file mgn, orblogin)

made a new function in orbtk, Window::new_flags if need to make a
window with flags

Added &[WindowFlag::Exit] to call to window which creates login. In
other programs, if not flags were previously pass I now pass &[]

Use mime_guess in file manager

Implemented the open functionality for editor

browser: Parse content-type header

This fixes some websites that send character encoding information in the content-type header

file_manager on orbtk