feat!: foreground app with `activateApp`

[dlenroc]

If activateApp is called without options and the target app is already launched but either suspended or in the background, it will be brought to the foreground. If at least one option is passed, the channel will be relaunched with new launch arguments, even if it is already running with the same values.

PS: The same will apply to launch deep link.

await driver.url('roku://launch/dev');