[AAE-4379] i18n fixes

[DenysVuika]

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)

What is the new behaviour?

• add missing i18n support for Cloud Filters
• update e2e to take into account localizable content
• greatly improve e2e readability (reduce code duplication and size of the code)

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 #6515 (886eb7a) into develop (13faf4e) will increase coverage by 1.69%.
The diff coverage is 95.83%.

@@             Coverage Diff             @@
##           develop    #6515      +/-   ##
===========================================
+ Coverage    76.25%   77.94%   +1.69%     
===========================================
  Files          868      356     -512     
  Lines        19623     9754    -9869     
  Branches      3907     1965    -1942     
===========================================
- Hits         14964     7603    -7361     
+ Misses        3463     1548    -1915     
+ Partials      1196      603     -593     

Impacted Files	Coverage Δ
...rocess-list/services/process-list-cloud.service.ts	96.55% <ø> (ø)
...t-task-filters/edit-task-filter-cloud.component.ts	92.72% <80.00%> (+0.27%)	⬆️
.../lib/app/components/app-details-cloud.component.ts	100.00% <100.00%> (ø)
...src/lib/app/components/app-list-cloud.component.ts	100.00% <100.00%> (ø)
...-services-cloud/src/lib/app/mock/app-model.mock.ts	100.00% <100.00%> (ø)
...d/src/lib/app/models/application-instance.model.ts	100.00% <100.00%> (+60.00%)	⬆️
...src/lib/app/services/apps-process-cloud.service.ts	72.00% <100.00%> (-1.08%)	⬇️
.../components/edit-process-filter-cloud.component.ts	73.39% <100.00%> (ø)
...k-filters/base-edit-task-filter-cloud.component.ts	72.00% <100.00%> (ø)
...ilters/edit-service-task-filter-cloud.component.ts	87.09% <100.00%> (+0.43%)	⬆️
... and 514 more

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[andrea-ligios]

LGTM