L10n support for acter_notifify plugin

[gnunicorn]

No description provided.

[github-actions]

Hey there 👋,
and thanks for the contribution. But it seems like you forgot to

• 📰 Add a markdown file in .changes/ explaining what changed

[codecov]

Codecov Report

Attention: Patch coverage is 65.62500% with 11 lines in your changes missing coverage. Please review.

Project coverage is 46.81%. Comparing base (527966c) to head (dbe3c0f).

Files with missing lines	Patch %	Lines
packages/acter_notifify/lib/l10n/l10n.dart	15.38%	11 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2576       +/-   ##
===========================================
+ Coverage   32.61%   46.81%   +14.19%     
===========================================
  Files         730      134      -596     
  Lines       47792    21177    -26615     
===========================================
- Hits        15589     9913     -5676     
+ Misses      32203    11264    -20939     

Flag	Coverage Δ
integration-test	42.74% <ø> (-0.32%)	⬇️
unittest	34.10% <65.62%> (+10.48%)	⬆️

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