feat: add profile rename, all postcard fields required

app/routers/web.py

@@ -139,6 +139,15 @@ def profile_delete(profile_id: int, user: User = Depends(get_current_user_web),
     return _redirect("/profiles")
 
 
+@router.post("/profiles/{profile_id}/rename")
+def profile_rename(profile_id: int, nickname: str = Form(...), user: User = Depends(get_current_user_web), db: Session = Depends(get_db)):
+    p = db.query(Profile).filter(Profile.id == profile_id, Profile.user_id == user.id).first()
+    if p:
+        p.nickname = nickname
+        db.commit()
+    return _redirect("/profiles")
+
+
 # ---------- Postcards ----------
 
 @router.get("/profiles/{profile_id}/postcards", response_class=HTMLResponse)