Desktop: Fixes #6813: Upgrade electron to 19.0.10

[brad]

Fixes #6813

Under Asahi Linux I tried Joplin with a few different electron versions with these results

• 18.2.0 ❌
• 18.3.2 ❌
• 18.3.6 ❌
• 19.0.0 ✅
• 19.0.10 ✅

So it looks like the fix was introduced in 19.0.0 (since there were no releases between 18.3.6 and 19.0.0) but I set the version to 19.0.10 to take advantage of any bug fixes on the minor releases.

[laurent22]

Any Electron upgrades need to be thoroughly tested. Please see other Electron upgrade pull request for more info.

[brad]

@laurent22 Good point. I've been using it for a few days but not really putting it through it's paces so I'll do that. In the meantime, I did just take a look at breaking changes in the release notes and couldn't find any places in the code that would be affected by them

Unsupported on Linux: .skipTaskbar
The BrowserWindow constructor option skipTaskbar is no longer supported on Linux. Changed in #33226

Removed WebPreferences.preloadURL
The semi-documented preloadURL property has been removed from WebPreferences. #33228. WebPreferences.preload should be used instead.

[brad]

@laurent22 I've tested the following

• printing
• export (tried with pdf and html)
• file attachment (tried with an image)
• plugins (I tried bulk note plugin)
• sync (with dropbox)
• external editing

[laurent22]

Thanks for testing all this! Let's merge