Joel Purra: Developer and more

Warn if no voices are installed

Commit message

Warn if no voices are installed

- Some browsers have no bundled voices, and/or cannot find any provided by the (operating) system.
  - One example is Chromium v96 installed via `snap` on Ubuntu 21.10
- If no voices were loaded after a short while, notify the user.
  - Shown on the welcome and voice tabs of the options page.

Changed files (2)

• code/packages/options-application/src/app/support/install-voices.tsx +45, -6
• code/packages/options-application/src/containers/welcome-container.tsx +1, -1