Bug 1744759 - [devtools] Create a pref flag for the edit and resend panel. r=bomsy

Differential Revision: https://phabricator.services.mozilla.com/D133193

browser/app/profile/firefox.js

@@ -2445,6 +2445,9 @@ pref("devtools.netmonitor.audits.slow", 500);
 // Enable the EventSource Inspector
 pref("devtools.netmonitor.features.serverSentEvents", true);
 
+// Enable the new Edit and Resend panel
+pref("devtools.netmonitor.features.newEditAndResend", false);
+
 // Enable the Storage Inspector
 pref("devtools.storage.enabled", true);