v17-pre6 — Puffin Planes Steam update #891193

Just dropping a small update to get back into the groove of things. I'm hoping to get back to releasing these consistently, life was just really busy over the past month or so. Changes: - "Select Aircraft" sub-window now opens automatically when creating a new plane. - Pressing 'esc' will now always close sub-windows rather than the parent if open (e.g. select aircraft sub-window). - Consistent sound effect now plays whenever creating or updating a plane. - Maintenance strategy is now on a per-airline basis, rather than per-airplane. - Unified maintenance strategy tooltip which shows you your current strategy in the airplane overview. Bugfixes: - Fixed default seating presets not having tooltips to explain what they are. - Fixed the loading time and daily profit badges not resetting when opening the Airplane GUI with a new plane. - Fixed off-by-one error where sometimes the production li...