Fix a couple of crashes on macOS from a missing environment object.

[pixlwave]

This fixes a regression introduced in #4144 where we assumed that if it works on iOS it will work on macOS 🫠

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

	Warnings
⚠️	You seem to have made changes to views. Please consider adding screenshots.

Generated by 🚫 Danger Swift against 4545ede

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 79.38%. Comparing base (9a9bdcb) to head (4545ede).
Report is 2 commits behind head on develop.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...X/Sources/Screens/Timeline/View/TimelineView.swift	66.66%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4153      +/-   ##
===========================================
- Coverage    79.41%   79.38%   -0.04%     
===========================================
  Files          813      813              
  Lines        74408    74411       +3     
===========================================
- Hits         59089    59069      -20     
- Misses       15319    15342      +23     

Flag	Coverage Δ
unittests	71.49% <66.66%> (-0.03%)	⬇️

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