Task/1317 edge device connection state should be stored on database

[ChristopheRib63]

Description

What's new?

• Fix Task: Edge device connection state should be stored on database #1317

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Tests
• Other

[codecov]

Codecov Report

Base: 89.60% // Head: 89.60% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (088effc) compared to base (3541eea).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1464   +/-   ##
=======================================
  Coverage   89.60%   89.60%           
=======================================
  Files         256      256           
  Lines        8070     8073    +3     
=======================================
+ Hits         7231     7234    +3     
  Misses        839      839           

Impacted Files	Coverage Δ
...oTHub.Portal.Server/Services/EdgeDevicesService.cs	96.13% <ø> (-0.03%)	⬇️
...c/AzureIoTHub.Portal.Domain/Entities/EdgeDevice.cs	100.00% <100.00%> (ø)
...eIoTHub.Portal.Server/Mappers/EdgeDeviceProfile.cs	100.00% <100.00%> (ø)

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