Startup speed improvement

[Taron-art]

• I have read the contributing guidelines, and I agree with the Code of Conduct.
• Have you checked that there aren't other open pull requests for the same changes?
• Have you tested that the committed code can be executed without errors?
• This PR is not composed of garbage changes used to farm GitHub activity to enter potential Crypto AirDrops.
  Any user suspected of farming GitHub activity with crypto purposes will get banned. Submitting broken code wastes the contributors' time, who have to spend their free time reviewing, fixing, and testing code that does not even compile breaks other features, or does not introduce any useful changes. I appreciate your understanding.

---

There are two related changes:

1. LoadComponentsAsync() was waiting 700 ms (in DoEntryTextAnimationAsync) before starting the iniTasks creation. I moved DoEntryTextAnimationAsync to iniTasks, this helps to shave this 700 ms from start time (25 - 30 % of startup time on my machine).
2. Second commit changed LoadingIndicator default visibility to "Collapsed", as it was probably intended. Otherwise, pause and Visibility set in LoadComponentsAsync does not make sense.

---