Fix PerfMonitor appearance when reloading JS (#24073)

Summary:
Fix for this issue I rasied: #24024
When I toggle `Show Perf Monitor` and reload JS `CMD+R` the Perf Monitor will be hidden, but settings in dev menu will persist. So to fix this state and need to `Hide Perf Monitor` and `Show Perf Monitor` again to see it.

[iOS] [Fixed] - Show Perf Monitor, after reloading JS
Pull Request resolved: #24073

Differential Revision: D14560025

Pulled By: cpojer

fbshipit-source-id: cd5602bd6ee041b8b3e61d163d10bd8bc47237b9

Author: usrbowe

React/Profiler/RCTPerfMonitor.m

@@ -156,6 +156,9 @@ - (RCTDevMenuItem *)devMenuItem
   if (!_devMenuItem) {
     __weak __typeof__(self) weakSelf = self;
     __weak RCTDevSettings *devSettings = self.bridge.devSettings;
+    if (devSettings.isPerfMonitorShown) {
+      [weakSelf show];
+    }
     _devMenuItem =
     [RCTDevMenuItem buttonItemWithTitleBlock:^NSString *{
       return (devSettings.isPerfMonitorShown) ?