Fix an animation glitch when signing in on iOS 16.

[pixlwave]

Fixes #1807 which only seems to occur on iOS 16. Maybe building with Xcode 15 will also back-deploy the fix, but this seems good enough for now (there is a small chance that the individual cell animations could become out of sync as they're not coordinated this way).

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[github-actions]

	Warnings
⚠️	Some of the commits are missing ticket numbers. Please consider squashing all commits that don't have a tracking number.
⚠️	You seem to have made changes to views. Please consider adding screenshots.

Generated by 🚫 Danger Swift against b47b8b4

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0831c89) 69.86% compared to head (b47b8b4) 69.86%.
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2098   +/-   ##
========================================
  Coverage    69.86%   69.86%           
========================================
  Files          522      522           
  Lines        36379    36379           
  Branches     17586    17586           
========================================
+ Hits         25415    25416    +1     
+ Misses       10322    10320    -2     
- Partials       642      643    +1     

Flag	Coverage Δ
unittests	57.24% <100.00%> (-0.01%)	⬇️

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