Add pie shaped progress bar for chatbar instead of busy indicator
![2023-03-15_15-06-51](/uploads/7a56d2a1696e26b87451b0951995a730/2023-03-15_15-06-51.mp4) Closes network/neochat#151
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![2023-03-15_15-06-51](/uploads/7a56d2a1696e26b87451b0951995a730/2023-03-15_15-06-51.mp4) Closes network/neochat#151