False positives (#6217)

* add false positive submission

* switch timeline events to x,y,w,h

* update docs

* fix type checks

* convert to upsert

* fix config test

docker/rootfs/usr/local/nginx/conf/nginx.conf

@@ -221,6 +221,7 @@ http {
 
             add_header 'Access-Control-Allow-Origin' '*';
             add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS';
+            add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
             proxy_pass http://frigate_api/;
             proxy_pass_request_headers on;
             proxy_set_header Host $host;