Surface network error for actionable notifications

[bbirman]

Need to verify one more time on test1 once it's back before merging

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.96%. Comparing base (61e2236) to head (27bf5db).
⚠️ Report is 2 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3953      +/-   ##
==========================================
- Coverage   63.98%   63.96%   -0.02%     
==========================================
  Files         252      252              
  Lines       22098    22100       +2     
==========================================
- Hits        14140    14137       -3     
- Misses       7958     7963       +5     

Components	Coverage Δ
Analytics	70.78% <ø> (ø)
Common	69.76% <ø> (ø)
Core	54.90% <100.00%> (-0.01%)	⬇️
SmartStore	74.59% <ø> (ø)
MobileSync	87.41% <ø> (-0.12%)	⬇️

Files with missing lines	Coverage Δ
...hNotificationManager+ActionableNotifications.swift	90.90% <100.00%> (-1.10%)	⬇️

... and 2 files with indirect coverage changes

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