[Suggestion] Auto 72 dpi resolution when exporting for web option

[Sonny Sonny]

When exporting images (especially for web), 72 dpi is a must in some cases, I hope Affinity could have an option (check box I guess) that help:

- Auto change the dpi resolution to 72

- But keep the dimmensions of the images

I know there is a "batch" feature but an option on exporting windows is great!