[Feature] FAQ Section within the Help Section

[VonTittyslappen]

Describe the solution you'd like
Have discussed in the Help channel on Discord before, I feel it would be beneficial for their to be an FAQ section within the Help Section (on Stash itself, not Discord). For example, I deleted out all of the images from the generated folder due to the new addition of being able to customise the start times on the previews, but in doing so, I deleted all the scene thumbnails in the process. I tried generating again and it didnt work, and it turned out I just needed to run a scan and thats when it generated the thumbs again. Something like that being in a FAQ section would be beneficial. Another example are the useful commands to export your performer list, vacuuming the database, etc etc.