Fix: use `open_file` for actual movements
Fix: use `open_file` for actual movements

Problem: if we use the selection API with `view.show_at_center`, Sublime
surprisingly does not count that as movement. So neither `jump back` works
nor does `on_selection_modified` trigger.

So we use `window.open_file` with sublime.ENCODED_POSITION.

SublimeLinter/SublimeLinter3,SublimeLinter/SublimeLinter3