Allows users to hide their check-ins from other users

app/routes/dashboard.py

@@ -48,9 +48,10 @@ def index():
         SELECT c.*, u.display_name, u.username
         FROM checkins c
         JOIN users u ON c.user_id = u.id
+        WHERE u.is_private = FALSE OR u.id = %s
         ORDER BY c.checked_in_at DESC
         LIMIT 10
-    """)
+    """, (user["id"],))
 
     # Milestones
     milestones = query(