Is your feature request related to a problem? Please describe.
Using shortcuts is useful and nice. But remembering them is not easy.

Describe the solution you’d like
In other web apps I am used to a popup/information about shortcuts when pressing ?.
It would be very useful if a ? press would either (1) show a popup with shortcuts or (2) redirect to the shortcuts page.

Describe alternatives you’ve considered
Of course I can navigate to the shortcut page using the mouse. But who uses the mouse these days... 😜

Additional context
Many other (web) apps support the ? button. Intuitively I tried it on FreshRSS too, but no luck 😊.