Allow rotation of PWA

[Sobuno]

Is your idea or proposal related to a problem? Please describe.
When installed onto an Android device as a Progressive Web App, the application seems to be locked into portrait mode.

I have a tablet wall-mounted in landscape mode - This makes it rather hard to use the PWA.

The website itself seems to be able to render just fine in landscape mode.

Describe your idea or proposal
Allow the PWA to align itself with the device's current orientation. I believe it would just be a matter of removing this line in the manifest: https://github.com/julianpoy/RecipeSage/blob/master/packages/frontend/src/manifest.json#L91

[julianpoy]

Have a PR up, thanks for the bug report!