1800 Fix header padding issue when dropdown/dialog opens

[pmolnar-dev]

Checklist

• [x] I have followed (at least) the PR section of the contributing guide.
• [x] I fixed all necessary PR warnings
• [x] The commit history is clean
• [ ] The E2E tests are passing
• [x] If possible, the issue has been divided into more subtasks
• [x] I did a self review before requesting a review from another team member

Description

• fix issue when header is moving to the left when dropdown or dialog window is opened

How to test

1. login as any user
2. try to change pagination limit by opening dropdown in project card view
3. right navigation should not move

Closes #1800

[openkfwCI]

	Notes	Time
:x:	Note for Reviewer: E2E tests on pipeline 58715 on remote server failed	Fri, 26 Apr 2024 08:52:29 +0000

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