[ACA-4057] Edit getProcessInstanceByName method to search the process instance directly by its name

[iuliaib]

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• Tests for the changes have been added (for bug fixes / features)
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• Bugfix
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• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
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If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...

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[codecov-io]

Codecov Report

Merging #6303 into develop will increase coverage by 1.29%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #6303      +/-   ##
===========================================
+ Coverage    76.28%   77.58%   +1.29%     
===========================================
  Files          864      147     -717     
  Lines        19583     4068   -15515     
  Branches      3901      806    -3095     
===========================================
- Hits         14939     3156   -11783     
+ Misses        3470      646    -2824     
+ Partials      1174      266     -908     

Impacted Files	Coverage Δ
...b/core/form/components/widgets/tabs/tabs.widget.ts
lib/core/models/pagination.model.ts
...cess-services/src/lib/app-list/apps-list.module.ts
...-cloud/src/lib/task/services/task-cloud.service.ts
...d/src/lib/app/models/application-instance.model.ts
...am/components/activities/diagram-task.component.ts
lib/core/directives/node-restore.directive.ts
...src/lib/mock/analytics/analytics-component.mock.ts
...rc/lib/task/task-list/models/filter-cloud-model.ts
lib/core/mock/form/form.service.mock.ts
... and 707 more

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