text_to_speech, mention all platforms

[RubenGarcia]

Your Godot version:
4.4

Issue description:
Requirements for functionality
mentions Windows, Linux and macOS.
Can a mention of the other godot supported platforms (android, iOS, web) be added, indicating if text to speech works on them or not?

URL to the documentation page (if already existing):
https://docs.godotengine.org/en/stable/tutorials/audio/text_to_speech.html

[RubenGarcia]

Android: Should work
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwj867bthIyNAxUh3AIHHf1WL_wQwqsBegQIDBAF&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D-u5w80lD4Aw&usg=AOvVaw050f59-qv0Khe0QfIZU3D1&opi=89978449

iOS: Should work
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwiD4Y74hIyNAxWm7AIHHctCKVAQwqsBegQIDBAG&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DdLWisBMIs70&usg=AOvVaw0j62nlb0wo4h6wUP77jk-o&opi=89978449

Web: probably does not work, I did not find any documentation on this.

[bruvzg]

TTS on Web, Android and iOS should be already supported.

[bruvzg]

The requirement part of the docs is only intended for Linux, since TTS availability depends on installed libs, on other platforms it's always available.

[RubenGarcia]

An explicit mention of this would be great.

[RubenGarcia]

#10930