Fix #489 - Error when getting logs from modules

[kbeaugrand]

Description

What's new?

• Fix Bug: Getting logs through the portal #489

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

Merging #494 (32ea945) into main (20bb502) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #494   +/-   ##
=======================================
  Coverage   60.75%   60.75%           
=======================================
  Files         114      114           
  Lines        3710     3710           
=======================================
  Hits         2254     2254           
  Misses       1456     1456           

Impacted Files	Coverage Δ
.../AzureIoTHub.Portal/Server/Helpers/DeviceHelper.cs	100.00% <100.00%> (ø)

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