Prevent throw for second thread credentials call

[bgoncal]

Summary

Prevent throw for second thread credentials call, since sometimes "preferredCredential" succeeds but "allCredentials" fail, we don't want to avoid showing the preferred credential.

Screenshots

Link to pull request in Documentation repository

Documentation: home-assistant/companion.home-assistant#

Any other notes

[codecov]

Codecov Report

Attention: 451 lines in your changes are missing coverage. Please review.

Comparison is base (8f7f0ec) 28.37% compared to head (a630a6e) 28.13%.
Report is 5 commits behind head on master.

Files	Patch %	Lines
...DropSupport/DropSupportMessageViewController.swift	0.00%	122 Missing ⚠️
...dentialsSharing/ThreadCredentialsSharingView.swift	0.00%	117 Missing ⚠️
Sources/App/WebView/WebViewController.swift	0.00%	90 Missing ⚠️
...alsSharing/ThreadCredentialsSharingViewModel.swift	38.46%	24 Missing ⚠️
...ces/App/Settings/DebugSettingsViewController.swift	0.00%	21 Missing ⚠️
...rces/Shared/DesignSystem/Components/CardView.swift	0.00%	21 Missing ⚠️
...rces/Shared/DesignSystem/Components/HAButton.swift	0.00%	14 Missing ⚠️
Sources/Shared/Environment/MatterWrapper.swift	0.00%	12 Missing ⚠️
...ntialsSharing/ThreadCredentialsSharing+build.swift	0.00%	8 Missing ⚠️
Sources/App/AppDelegate.swift	0.00%	6 Missing ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2475      +/-   ##
==========================================
- Coverage   28.37%   28.13%   -0.24%     
==========================================
  Files         273      285      +12     
  Lines       30284    30784     +500     
==========================================
+ Hits         8593     8661      +68     
- Misses      21691    22123     +432     

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