Get data ASAP

Noticed that self.watch(... init=False) is overall bad.

It means we won't ask for some data (even if it might be available) and will receive the next update (so in case of data providers in worst case after next 1.5s + call time)

This MR ensures all self.watch calls have init=True (default in textual). This requires additional checks if the data is available yet, because it is updated in the background so might be not yet available.