feat(slack): edit command to update the metadata of an incident

[jennafauconnier]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 35.00000% with 65 lines in your changes missing coverage. Please review.

Project coverage is 62.63%. Comparing base (7fbaea4) to head (ccd7cf2).

Files with missing lines	Patch %	Lines
.../templates/layouts/partials/incident_timeline.html	0.00%	31 Missing ⚠️
src/firefighter/slack/views/modals/edit.py	50.00%	19 Missing and 1 partial ⚠️
src/firefighter/slack/messages/slack_messages.py	0.00%	9 Missing ⚠️
src/firefighter/incidents/models/incident.py	60.00%	2 Missing ⚠️
src/firefighter/slack/views/events/commands.py	0.00%	2 Missing ⚠️
src/firefighter/incidents/forms/edit.py	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #96      +/-   ##
==========================================
- Coverage   62.80%   62.63%   -0.17%     
==========================================
  Files         213      215       +2     
  Lines        9431     9522      +91     
  Branches     1276     1288      +12     
==========================================
+ Hits         5923     5964      +41     
- Misses       3300     3349      +49     
- Partials      208      209       +1     

Flag	Coverage Δ
unittests	62.63% <35.00%> (-0.17%)	⬇️

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