Fix bug of counting input oois for each report type

Bug fix in counting input_oois of subreports. There was an override of counts while it should sum up for each report type.
I have also added sorting of report types making the summary more readable.

Please add some information for QA on how to test the newly created code.

[x] All the commits in this PR are properly PGP-signed and verified.
[x] This PR only contains functionality relevant to the issue.
[x] I have written unit tests for the changes or fixes I made.
[x] I have checked the documentation and made changes where necessary.
[x] I have performed a self-review of my code and refactored it to the best of my abilities.

[x] Tickets have been created for newly discovered issues.
[x] For any non-trivial functionality, I have added integration and/or end-to-end tests.
[x] I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
[x] I have included comments in the code to elaborate on what is not self-evident from the code itself, including references to issues and discussions online, or implicit behavior of an interface.

Checklist for code reviewers:

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Copy-paste the checklist from the docs/source/templates folder into your comment.