[idea] Add a FAQ page

[Sebastix]

What about a FAQ page with several questions and answers?

Some example questions which come in my mind:

• How do I delete something on Nostr?
• How do I deleted my profile?
• I've lost access to my account, what can I do?
• Why do I need to login with a extension?
• My client is slow, how come?
• My DMs don't show up, is this normal?
• My feed is empty, how do I fix this?
• My relay list is empty, how do I fix this?
• Why are the following and followers counts different on each client?
• How do I search on Nostr?
• How can I link to my Nostr profile? See #127
• How can I invite my friends to use Nostr?