fix: 'page-title-updated' event forwarding + documentation

[trop]

Backport of #18270

See that PR for details.

Notes: Added missing 'page-title-updated' event on webContents to documentation. Also fixed forwarding of the explicitSet argument when emitted on BrowserWindow.

[release-clerk]

Release Notes Persisted

Added missing 'page-title-updated' event on webContents to documentation. Also fixed forwarding of the explicitSet argument when emitted on BrowserWindow.

[AnalyzerTech]

(^__^))}{"HelloWorld"};
I did the unthinkable, and it was the biggest argument I have been in on line.
I sent a personal document to a site in a conversation that was in a navigating chat box.
I was not getting a response and I got concerned so like usual I inspect element and the argument takes
off in full effect. I began losing leverage and control over the argument so I left out of anger and in my return I see violation of using up space but I really needed to clear my head. after my break I eventually had to request IANA for help do to more than one force involved with the issue. If I leave a problem unsolved especially when it involves application and data management it gets serious. My 10 months of learning code has really shown me how to view the bigger picture of an event or a technical situation.
well, anyone who reads this message, remember their is always a way to overcome your mistakes and don't ever give up on success.