Prevent Generation of Crashdumps When the Browser Is Closed (#4667)

* fix: extension process generating crashdumps

* fix: move `getApp` call

* chore: remove distracting comments

* chore: add changelog entry

src/BrowserExtension.cpp

@@ -75,6 +75,7 @@ namespace {
 
             client.sendMessage(data);
         }
+        _Exit(0);
     }
 }  // namespace