Fix loop scenario when the login page is not present in silent login

[eromano]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x")

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation
• Other... Please describe:

What is the current behaviour? (You can also link to an open issue here)
Fix loop scenario when the login page is not present in silent login

What is the new behaviour?

Does this PR introduce a breaking change? (check one with "x")

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...

Other information:

[codecov-io]

Codecov Report

Merging #6512 (cc06f5d) into develop (13faf4e) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #6512      +/-   ##
===========================================
- Coverage    76.25%   76.24%   -0.02%     
===========================================
  Files          868      868              
  Lines        19623    19614       -9     
  Branches      3907     3903       -4     
===========================================
- Hits         14964    14955       -9     
- Misses        3463     3467       +4     
+ Partials      1196     1192       -4     

Impacted Files	Coverage Δ
lib/core/services/auth-guard-base.ts	75.00% <100.00%> (-2.42%)	⬇️
lib/core/services/auth-guard-ecm.service.ts	100.00% <100.00%> (ø)
lib/core/services/auth-guard.service.ts	38.88% <0.00%> (-11.12%)	⬇️
lib/core/services/upload.service.ts	85.47% <0.00%> (-3.36%)	⬇️
...lib/process-comments/process-comments.component.ts	61.53% <0.00%> (-2.57%)	⬇️
...src/lib/app/services/apps-process-cloud.service.ts	72.00% <0.00%> (-1.08%)	⬇️
...-services-cloud/src/lib/app/mock/app-model.mock.ts	100.00% <0.00%> (ø)
...src/lib/app/components/app-list-cloud.component.ts	100.00% <0.00%> (ø)
.../lib/app/components/app-details-cloud.component.ts	100.00% <0.00%> (ø)
... and 5 more

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