Add usage instructions somewhere in the app

[Stypox]

• How to set the app as the system assistant (i.e. that triggers when long pressing the circle button)
• How to setup a TTS if the on-device one does not work, with a button that leads to the relevant system settings screen
• & more

[MXC48-zz]

• How to set the app as the system assistant (i.e. that triggers when long pressing the circle button)
• & more

An "About" tab could be nice :) There is already one in NewPipe, one in the same genre would be nice

[RokeJulianLockhart]

I would label it as "Assistance" rather than "About" because I would not consider "About" to contain assistance; rather, for it to contain regulatory and legal information.

[Stypox]

Yes, About and Help/Assistance should stay separated