Dependent menus not updated after .zip library install

[per1234]

Describe the bug

🐛 After installing a library via Sketch > Include Library > Add .ZIP Library...", the library does not appear in the "File > Examples" and "Sketch > Include Library" menus until after the IDE is restarted.

To Reproduce

1. Obtain an library in suitable .zip format which is not already installed on your computer: https://github.com/arduino-libraries/ArduinoMDNS/archive/refs/heads/master.zip
2. Select Sketch > Include Library > Add .ZIP Library... from the Arduino IDE menus.
3. Select the library .zip (ArduinoMDNS-master.zip).
4. Click the Open button.
5. Select File > Examples from the Arduino IDE menus.
   🐛 Note that the expected "ArduinoMDNS" submenu item is not present.
6. Select Sketch > Include Library from the Arduino IDE menus.
   🐛 Note that the expected "ArduinoMDNS" submenu item is not present.
7. Select File > Quit from the Arduino IDE menus.
8. Start the Arduino IDE.
9. Select File > Examples from the Arduino IDE menus.
   🙂 Note that the expected "ArduinoMDNS" submenu item is now present.
10. Select Sketch > Include Library from the Arduino IDE menus.
    🙂 Note that the expected "ArduinoMDNS" submenu item is now present.

Expected behavior

Dependent menus are refreshed after .zip library install

Desktop

• OS: Windows 10
• Version: 2.0.0-rc1-snapshot.f0d9894
  Date: 2021-11-30T16:25:41.414Z
  CLI Version: 0.20.1 [abb21449]

Additional context

These menus are updated after .zip library installation in the classic Arduino IDE.

[kittaakos]

The new APIs should solve this. See somewhat related problem here and the new APIs here.