Always redirect to katalogus when enabling plugins

[noamblitz]

Changes

Before, when enabling/disabling plugins we tried redirecting back, this caused problems in the report flow where post requests are used. Now, after discussions with @underdarknl we decided that enabling/disabling plugins would always redirect to the katalogus page. It is then the responsibility of the user to go back to the report flow.

Issue link

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Closes ...

Demo

Please add some proof in the form of screenshots or screen recordings to show (off) new functionality, if there are interesting new features for end-users.

QA notes

• enabling plugins in katalogus should still work
• enabling/disabling plugins in report flow should work (but redirect you to the katalogus)

Code Checklist

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

• Tickets have been created for newly discovered issues.
• For any non-trivial functionality, I have added integration and/or end-to-end tests.
• I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
• 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.

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Checklist for QA:

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[underdarknl]

In a new ticket we can improve the UX for users by handling these calls trough an optional Async call to a new json api.