Library dependencies installation dialog not given focus on open

[per1234]

Describe the problem

Arduino libraries may specify dependencies on other libraries. When installing one of a library with defined dependencies via the Arduino IDE Library Manager, a dialog appears asking the user whether the dependencies should be installed in addition to the library:

🐛 This dialog is not given focus. This makes it inaccessible for those who rely on keyboard navigation and inconvenient for those who prefer keyboard navigation.

To reproduce

1. Open the "Library Manager" view.
2. Find "ArduinoIoTCloud" in the "Library Manager" view.
3. Click the INSTALL button.
4. Attempt to activate either of the buttons on the dialog using the keyboard.

🐛 The buttons are inaccessible due to the dialog not having focus.

Expected behavior

Dialogs are always given focus on opening

Arduino IDE version

d24a391

Operating system

Windows

Operating system version

10

Additional context

Related:

• Accessibility: Screenreader semantics and keyboard navigation could use some TLC #360
• Keybinding to browse different frames/views #1561
• Library/Boards Manager uninstall button not accessible via keyboard #1661

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details

[kittaakos]

Resolved via 2aad0e3.